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126=-2x-2(4x+13)
We move all terms to the left:
126-(-2x-2(4x+13))=0
We calculate terms in parentheses: -(-2x-2(4x+13)), so:We get rid of parentheses
-2x-2(4x+13)
We multiply parentheses
-2x-8x-26
We add all the numbers together, and all the variables
-10x-26
Back to the equation:
-(-10x-26)
10x+26+126=0
We add all the numbers together, and all the variables
10x+152=0
We move all terms containing x to the left, all other terms to the right
10x=-152
x=-152/10
x=-15+1/5
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