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11=2x+5(-x-5)
We move all terms to the left:
11-(2x+5(-x-5))=0
We add all the numbers together, and all the variables
-(2x+5(-1x-5))+11=0
We calculate terms in parentheses: -(2x+5(-1x-5)), so:We get rid of parentheses
2x+5(-1x-5)
We multiply parentheses
2x-5x-25
We add all the numbers together, and all the variables
-3x-25
Back to the equation:
-(-3x-25)
3x+25+11=0
We add all the numbers together, and all the variables
3x+36=0
We move all terms containing x to the left, all other terms to the right
3x=-36
x=-36/3
x=-12
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