# 20/20 Linear Equations — The tutor in your pocket. > Educational app for mastering linear equations with calculators, practice, and guides. (iPhone/iPad app by Walter Kissach.) - Source: https://appshunter.io/ios/app/2020-linear-equations/id314933948 (this page in markdown: same URL + `.md`) - Developer: [Walter Kissach](https://appshunter.io/developer/293232788) - Category: Education, Reference - Price: $0.99 - Rating: 1.00/5 from 1 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 18.0 · 2 MB - Languages: American English - Released: 2009-05-08 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/2020-linear-equations/id314933948/reviews.md ## What is 20/20 Linear Equations? A power learning aid combines Coaching Calculators, Practice and Guide to help students master linear equations. The Coaching Calculators focus on one-step, two-step and multi-step linear equations as well as those containing parentheses, decimals and fractions : one-step : x − 2 = 3 , x/7 = 2 two-step : 3x + 8 = 20, 2 = 5 − 6x multi-step : 4 + 9x = 2x − 18 parentheses : 2(3 − 4x) = 2x + 9 decimals : 0.25x + 1.5 = 9.9 − 0.2x fractions : (1/2)x − 5 = 3x + 1/5 Practice focuses on all of the above as well as harder equations with parentheses and fractions : 10 − 3(2 − 3(x + 5)) = 2x + 9 (1/2)(2x − 5) = 3x + 3/4 Students learn quickly as they work with Coaching Calculators and Practice to review each step of the solving process. The step by step Guide includes many worked examples that highlight and simplify algebra that students find hard. ## Key features - Coaching Calculators for linear equations - Practice problems for all equation types - Step-by-step guide with worked examples - Support for one-step, two-step, and multi-step equations - Handles equations with parentheses, decimals, and fractions ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/2020-linear-equations/id314933948/reviews.md ### 1/5 — Mrs. *2011-04-06* Waste of money, no good examples or tutorials, very poor. I want my money back. ### 1/5 — not interactive *2009-05-20* Examples are poor. No interaction. If you are going to read something, read your textbook. Save your money. ### 2/5 — This is not a program *2009-05-10* As a guide this app is OK but it does NOT solve anything for you. You find an equation from its list then use the steps provided to solve it yourself. If this app allowed you to input any of the equation types provided in the guide and then solved it for you, step by step, just like in the guide, I would rate this a 5. ## Frequently asked questions about 20/20 Linear Equations ### What types of linear equations does 20/20 Linear Equations cover? 20/20 Linear Equations covers one-step, two-step, and multi-step linear equations. It also handles equations containing parentheses, decimals, and fractions, including more complex forms with nested parentheses and fractions. ### How does 20/20 Linear Equations help students learn? The app uses Coaching Calculators to guide students through solving various equation types, offers dedicated practice sections, and provides a step-by-step guide with worked examples to simplify challenging algebra concepts. ### What devices is 20/20 Linear Equations available on? 20/20 Linear Equations is available for iPhone and iPad devices, making it a portable learning aid for students. ### What is the price of 20/20 Linear Equations? 20/20 Linear Equations is a paid application, priced at $0.99. This one-time purchase provides access to all its learning features. ### How often is 20/20 Linear Equations updated? The app was last updated on September 15, 2025, indicating recent development and potential for ongoing improvements and support. ### What is the age rating for 20/20 Linear Equations? 20/20 Linear Equations has an age rating of 4+, making it suitable for a wide range of students starting from early educational levels. ### Does 20/20 Linear Equations have ads? No, 20/20 Linear Equations does not contain advertisements. As a paid app, it offers an uninterrupted learning experience without any ad interruptions. ### What is the user feedback on 20/20 Linear Equations? Based on the available data, 20/20 Linear Equations has received one rating of 1.0 stars. Further user sentiment details are not provided. ## Version history (last 5 releases) ### 6.9 — 2025-09-15 This version is iOS 18 compatible. ### 6.8 — 2024-04-08 This version contains minor bug fixes. ### 6.7 — 2024-03-28 iOS 17 compatibility and minor bug fixes. ### 6.6 — 2022-12-11 This version has minor bug fixes. ### 6.5 — 2022-09-02 This version contains minor bug fixes and enhancements. ## Apps similar to 20/20 Linear Equations | App | Rating | Price | Category | | --- | --- | --- | --- | | [Linear Equations Tutor](https://appshunter.io/ios/app/linear-equations-tutor/id1199448971) | 4.5 (13) | Free | Education | | [LinearSolver](https://appshunter.io/ios/app/linearsolver/id895469797) | 3.0 (1) | $1.99 | Education | | [ACCUPLACER Study Practice 2025](https://appshunter.io/ios/app/accuplacer-study-practice-2025/id6471167494) | — | Free | Education | | [智力开发-认知大全拼图益智游戏学发音看图识物](https://appshunter.io/ios/app/id1615404640) | 3.0 (1) | Free | Education | | [St Mary’s Sec Sch New Ross](https://appshunter.io/ios/app/st-marys-sec-sch-new-ross/id1627712820) | — | Free | Education | | [Canada Citizenship Test 2026](https://appshunter.io/ios/app/canada-citizenship-test-2026/id1611949900) | 4.3 (29) | Free | Education | ## More apps by Walter Kissach - [Quadratic Inequalities](https://appshunter.io/ios/app/quadratic-inequalities/id293232785) - [Circles and Equations](https://appshunter.io/ios/app/circles-and-equations/id293619582) - [Even and Odd Polynomials](https://appshunter.io/ios/app/even-and-odd-polynomials/id293668394) - [Quadratic Factoring](https://appshunter.io/ios/app/quadratic-factoring/id294040055) - [Quadratic Equations](https://appshunter.io/ios/app/quadratic-equations/id294195555) - [20/20 Fraction Basics](https://appshunter.io/ios/app/2020-fraction-basics/id298766849) All apps by Walter Kissach: https://appshunter.io/developer/293232788 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*