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135=-x+267
We move all terms to the left:
135-(-x+267)=0
We add all the numbers together, and all the variables
-(-1x+267)+135=0
We get rid of parentheses
1x-267+135=0
We add all the numbers together, and all the variables
x-132=0
We move all terms containing x to the left, all other terms to the right
x=132
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