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8.4+6.5y=-7.5y
We move all terms to the left:
8.4+6.5y-(-7.5y)=0
We get rid of parentheses
6.5y+7.5y+8.4=0
We add all the numbers together, and all the variables
14y+8.4=0
We move all terms containing y to the left, all other terms to the right
14y=-8.4
y=-8.4/14
y=-3.5/5.8333333333333
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