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7(-x+2)=142
We move all terms to the left:
7(-x+2)-(142)=0
We add all the numbers together, and all the variables
7(-1x+2)-142=0
We multiply parentheses
-7x+14-142=0
We add all the numbers together, and all the variables
-7x-128=0
We move all terms containing x to the left, all other terms to the right
-7x=128
x=128/-7
x=-18+2/7
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