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-(x+4)=2x+25
We move all terms to the left:
-(x+4)-(2x+25)=0
We get rid of parentheses
-x-2x-4-25=0
We add all the numbers together, and all the variables
-3x-29=0
We move all terms containing x to the left, all other terms to the right
-3x=29
x=29/-3
x=-9+2/3
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