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(8-2Y)=4
We move all terms to the left:
(8-2Y)-(4)=0
We add all the numbers together, and all the variables
(-2Y+8)-4=0
We get rid of parentheses
-2Y+8-4=0
We add all the numbers together, and all the variables
-2Y+4=0
We move all terms containing Y to the left, all other terms to the right
-2Y=-4
Y=-4/-2
Y=+2
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