Question

Solve this system of linear equations. Separate

the x- and y-values with a comma.
- 10x + 2y = -28
-13x + 3y = -40

Answer 1

`- 10x + 2y = - 28 - - - (a) \\ - 13x + 3y = - 40 - - - (b) \\ 3 * (a) - 2 * (b) : \\ - 4x + 0y = - 4 \\ x = 1 \\ ( - 10 * 1) + 2y = - 28 \\ 2y = - 18 \\ y = -9`

answer: ( 1, -9 )