About Simultaneous Linear Equations
Elimination by Addition, by Addition/Subtraction and substitution methods .... all clearly explained. A power learning aid combining Practice, Coaching Calculators and Guides to take you step-by-step through the solving...
Elimination by Addition, by Addition/Subtraction and substitution methods .... all clearly explained.
A power learning aid combining Practice, Coaching Calculators and Guides to take you step-by-step through the solving of a pair of simultaneous linear equations.
The app features elimination by Addition, by Addition/Subtraction and substitution methods.
Coefficients can be nonzero integers from -999 to 999 inclusive.
You develop skills quickly as you work with the calculator and see each step of the process in detail :
Elimination by Addition :
- Choose which variable to eliminate
- Decide how to make its coefficients opposites
- Manipulate equations to make its coefficients opposites
- Eliminate the variable by adding the equations
- Solve resulting equation for the other variable
- Back substitute into an original equation
Elimination by Addition/Subtraction :
- Choose which variable to eliminate
- Decide how to make its coefficients the same (absolute value)
- Manipulate equations appropriately
- Eliminate the variable by adding/subtracting equations
- Solve resulting equation for the other variable
- Back substitute into an original equation
Substitution method :
The steps if you start by solving first equation to express x in terms of y are shown here.
- Solve first equation to express x in terms of y
- Substitute x in second equation and solve for y
- Substitute y solution back into rearranged first equation
- Solve resulting equation for x
Sep 16, 2025
Version 5.4
This version is iOS 18 compatible and contains minor bug fixes.
Previous Versions
Here you can find the changelog of Simultaneous Linear Equations since it was posted on our website on 2016-09-28 04:57:39.
The latest version is 5.4 and it was updated on 2026-06-12 13:13:51. See below the changes in each version.
Simultaneous Linear Equations version 5.4
Updated At: 2025-09-16
Changes: Sep 16, 2025
Version 5.4
This version is iOS 18 compatible and contains minor bug fixes.
Simultaneous Linear Equations version 5.2
Updated At: 2022-12-11
Changes: Dec 11, 2022
Version 5.2
This version has minor bug fixes.
Simultaneous Linear Equations version 5.0
Updated At: 2021-11-09
Changes: Nov 9, 2021 Version 5.0
iOS 15 compatibility and user interface improvements. Minor bug fixes.
Simultaneous Linear Equations version 4.9
Updated At: 2021-04-04
Changes: Apr 4, 2021 Version 4.9
Minor bug fixes and general improvements.
Simultaneous Linear Equations version 4.7
Updated At: 2020-05-24
Changes: May 24, 2020 Version 4.7
New Practice module and minor bug fixes.
Simultaneous Linear Equations version 4.7
Updated At: 2020-05-24
Changes: 24 May 2020 Version 4.7
New Practice module and minor bug fixes.
Simultaneous Linear Equations version 4.6
Updated At: 2020-01-22
Changes: Jan 22, 2020 Version 4.6
Minor bug fixes and enhancements.
Simultaneous Linear Equations version 4.0
Updated At: 2010-09-01
Simultaneous Linear Equations version 4.7
Updated At: 1970-01-01
Changes: 2020年5月24日 Version 4.7
New Practice module and minor bug fixes.
Disclaimer
Official App Store Link
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