Answer:
y=-3x+6
Step-by-step explanation:
that equation gives the answer for all the 'y'
what is this
R = 4x + 8y
-8y = 4x - R
-8y = 4(4) - 32
-8y = 16 - 32
-8y = -16
we divide through by -8
so now
y = 2
Hope this will help