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15-x=2(x+13)
We move all terms to the left:
15-x-(2(x+13))=0
We add all the numbers together, and all the variables
-1x-(2(x+13))+15=0
We calculate terms in parentheses: -(2(x+13)), so:We get rid of parentheses
2(x+13)
We multiply parentheses
2x+26
Back to the equation:
-(2x+26)
-1x-2x-26+15=0
We add all the numbers together, and all the variables
-3x-11=0
We move all terms containing x to the left, all other terms to the right
-3x=11
x=11/-3
x=-3+2/3
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