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Simultaneous equations - two equations

Simultaneous equations are two equations with two unknowns. The unknowns have the same values in each equation.

Simultaneous equations should read.

Simultaneously (at the same time) There are two equations with two unknowns

Do I know you simultaneous equation conjoined twins that don't know each other mnemonic picture

 

You are asked to find 2 unkown values by solving two equations.

Below are 3 examples of simultaneous equations:

 

Example 1

`y=4x`  ................. equation 1

and       `2x+y=6`  .......... equation 2

 

Example 2

`5a+2b=18`  ................. equation 1

and       `3a-5b=17`  .................. equation 2

 

Example 3

`0=x^2+2y`  ................. equation 1

and       `y=3x+4`  .................... equation 2

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