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=2Y+3.4Y-2
We move all terms to the left:
-(2Y+3.4Y-2)=0
We add all the numbers together, and all the variables
-(5.4Y-2)=0
We get rid of parentheses
-5.4Y+2=0
We move all terms containing Y to the left, all other terms to the right
-5.4Y=-2
Y=-2/-5.4
Y=2/5.4
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