Screenshots

Description

A power learning aid combining Coaching Calculators and Guides to take you step-by-step through the solving of a pair of simultaneous linear equations.

The app features the addition method, the elimination method and the substitution method.

Coefficients can be nonzero integers from -99 to 99 inclusive.

You develop skills quickly as you work with the calculator and see each step of the process in detail :

Addition method :

- 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 method :

- 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

Note that the Coaching Calculator shows the steps if you start by solving x or y from either equation.

What’s New

Version 4.4

iOS 13 and iPadOS compatibility.

Information

Seller
Walter Kissach
Size
10.7 MB
Category
Education
Compatibility

Requires iOS 13.0 or later. Compatible with iPhone, iPad, and iPod touch.

Languages

English

Age Rating
4+
Copyright
Price
$0.99

Supports

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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