In these tutorials you are shown how to solve a simultaneous equation by the substitution method. You are also shown how it relates to the intersection of two graphs and why there are two sets of solutions.

Example 1

Example in the video

Solve the simultaneous equations:

  1. {x^2} + {y^2} = 5

    x + y = 3

Example 2

Example in the video

Solve the simultaneous equations:

  1. xy - x = -10

    2x + y = 2