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-86=-2x-28+4x
We move all terms to the left:
-86-(-2x-28+4x)=0
We add all the numbers together, and all the variables
-(2x-28)-86=0
We get rid of parentheses
-2x+28-86=0
We add all the numbers together, and all the variables
-2x-58=0
We move all terms containing x to the left, all other terms to the right
-2x=58
x=58/-2
x=-29
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