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=1.2Y-2.8
We move all terms to the left:
-(1.2Y-2.8)=0
We get rid of parentheses
-1.2Y+2.8=0
We move all terms containing Y to the left, all other terms to the right
-1.2Y=-2.8
Y=-2.8/-1.2
Y=2+0.4/1.2
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