Answer:
First, you put the answer in slope intercept form,y=-7+4x. You substiuite which is going to be y-4x+4x=-7+4x. You simplify to y=-7+4x. You plug that into the other equation and solve. It turns out to be y= -59/9, and x=1/9. Hope this helps!
Answer:
y - 4x = -7 ...... 1
5x+y=-6 ......... 2
Make y the subject in equation 1
Thus
y = - 7 + 4x
Substitute this into Equation 2
We get
5x - 7 + 4x = - 6
9x = -6 + 7
9x = 1
x = 1/9
Substitute x = 1/9 into equation 1
y = -7 + 4x
y = - 7 + 4(1/9)
y = -7 + 4/9
y = - 59/9
x = 1/9 , y = -59/9
Hope this helps
