Question

Solve each system of linear equations by

multiplying { -2x + 2y = 2
{ -4x + 7y = 16

Answer 1

`x = 3 \\ y = 4`

Explanation:

`x = - 1 + y \\ - 4x + 7y = 16 \\ \\ - 4( - 1 + y) + 7y = 16 \\ \\ y = 4 \\ \\ x = - 1 + 4 \\ \\ x = 3`