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2(6-7x)=-142
We move all terms to the left:
2(6-7x)-(-142)=0
We add all the numbers together, and all the variables
2(-7x+6)-(-142)=0
We add all the numbers together, and all the variables
2(-7x+6)+142=0
We multiply parentheses
-14x+12+142=0
We add all the numbers together, and all the variables
-14x+154=0
We move all terms containing x to the left, all other terms to the right
-14x=-154
x=-154/-14
x=+11
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