Question

solve the system by substitution -4.5x-2y=-12.5 3.25x=-0.75 please help, I have to show it step by step and I have no idea what i'm doing :/

Answer 1

Sorry messed up its
-4.5x-2y=-12.5
3.25x-y=-0.75

Answer 2

Solve for one of the variables. In this case solving for y in the second equation would be quickest.

Answer 3

y=0.75+3.25x

Answer 4

substitute (0.75+3.25x) for y in the first equation.
-4.5x-2(0.75+3.25x)=-12.5

solve for x and plug that value into either of the original equations to find y

Answer 5

Thank you :)