Question

solve the system by substitution
-4.5x-2y=-12.5
3.25x-y=-0.75

Answer 1

form the second equation

y = 3.25x + 0.75

now replace the y in the first equation by 3.25x + 0.75
and solve for x

finally substitute this value of x into the first equation and find y

Answer 2

* from

Answer 3

-4.5x-2(3.25x+0.75)=-12.5
-2(7.75x+0.75)=-12.5
-15.5x-1.5=-12.5
-15.5x=-11
x=0.7
is this part right or did I do something wrong?

Answer 4

@cwrw238

Answer 5

Nevermind, I figured it out. X=1 y=4