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0.5(x+300)=0.56x-312
We move all terms to the left:
0.5(x+300)-(0.56x-312)=0
We multiply parentheses
0.5x-(0.56x-312)+150=0
We get rid of parentheses
0.5x-0.56x+312+150=0
We add all the numbers together, and all the variables
-0.06x+462=0
We move all terms containing x to the left, all other terms to the right
-0.06x=-462
x=-462/-0.06
x=+7700
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