Question

Need help fast i am stuck.

Answer 1

Well since you have y=5x-4 you can substitute that into 7x-3y=20
7x-3(5x-4)=20
That would equal x=-1
Since you know what x is, you can substitute that into the second equation
y=5(-1)-4 which would equal -9
x=-1
y=-9
Hope this helps!