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-2x-123=11x+84
We move all terms to the left:
-2x-123-(11x+84)=0
We get rid of parentheses
-2x-11x-84-123=0
We add all the numbers together, and all the variables
-13x-207=0
We move all terms containing x to the left, all other terms to the right
-13x=207
x=207/-13
x=-15+12/13
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