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54=-6x-2(-x-13)
We move all terms to the left:
54-(-6x-2(-x-13))=0
We add all the numbers together, and all the variables
-(-6x-2(-1x-13))+54=0
We calculate terms in parentheses: -(-6x-2(-1x-13)), so:We get rid of parentheses
-6x-2(-1x-13)
We multiply parentheses
-6x+2x+26
We add all the numbers together, and all the variables
-4x+26
Back to the equation:
-(-4x+26)
4x-26+54=0
We add all the numbers together, and all the variables
4x+28=0
We move all terms containing x to the left, all other terms to the right
4x=-28
x=-28/4
x=-7
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