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-2x-2(3x-7)=54
We move all terms to the left:
-2x-2(3x-7)-(54)=0
We multiply parentheses
-2x-6x+14-54=0
We add all the numbers together, and all the variables
-8x-40=0
We move all terms containing x to the left, all other terms to the right
-8x=40
x=40/-8
x=-5
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