Question

Use the substitution method to solve the system of equations. Then check your solution.

1.) b=-4a+5
a-b=5

2.) 6x-y=-15
x+2y=17

3.) x=10
y=2x-6

4.) n=-7m-4
14m+2n=-8

Answer 1

1. a=2 b=-3
2.
3.x=10 y=14
4.
I'll do the rest in 5 mins