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-7x-2.7=-90.2
We move all terms to the left:
-7x-2.7-(-90.2)=0
We add all the numbers together, and all the variables
-7x+87.5=0
We move all terms containing x to the left, all other terms to the right
-7x=-87.5
x=-87.5/-7
x=12+2.3333333333333/4.6666666666667
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