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Simultaneous Linear Equations

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

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

Simultaneous Linear Equations

by Walter Kissach
Simultaneous Linear Equations
Simultaneous Linear Equations
Simultaneous Linear Equations

What is it about?

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.

Simultaneous Linear Equations

App Details

Version
5.3
Rating
(1)
Size
1Mb
Genre
Education Reference
Last updated
April 2, 2024
Release date
August 6, 2010
More info

App Screenshots

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App Store Description

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

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