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.

A simultaneous equation is 2 equations with 2 unknowns

You are asked to find 2 unknown 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