Question

use the elimination method to solve the system of equations. a+9b=1
a+3b=-5

Answer 1

isolate a from first equation
a+9b=1
what u get?

Answer 2

I don't know

Answer 3

subtract 9b from both sides

Answer 4

okay the answer is a=-8 and b=1.

I got this by changing the first equation. I times the whole equation -1 and so it would look like this: -a -9b = -1. I cross out both a's because they are oppsite. That leaves me with b and the answers. Now I got -6b and -6. solve for b. B would be 1.

Plug -1 in any equation as "b".
You would then get a as -8