Answer:
We need to keep y on the left side only.
so we distribute the 4x to the right side.
that means:
4x - 4y = 8
-4x -4x
-4y = 8 - 4x
Now we divide by -4 on both sides
y = 8 - 4x/-4
-2 + x is y
Now for number 2:
Let's use -10 for x.
-2 -10 = -12
ok so 4x-4y=8
4x-4×8=
4x-32
4x-10-32=
-40 -32= -72
Explanation:
I think this is right sorry if I'm wrong
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