Question 526253
4x-4y=-16........(1)
y=4x+22 .........(2)

Put the value of y from (2) to (1)
4x-4y=-16
4x-4(4x+22)=-16
4x-16x-88=-16
4x-16x-88=-16
-12x=88-16
-12x=72
-12x/-12=72/-12
x=-6

Put the value of x in (2)

y=4(-6)+22 .........(2)
y=-24+22
y=-2

x,y=-6,-2


Check
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Put the value of x and y in (1)
4x-4y=-16
4(-6)-4(-2)=-16
-24+8=-16
-16=-16