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13x-6=(2)(21x+8)
We move all terms to the left:
13x-6-((2)(21x+8))=0
We calculate terms in parentheses: -(2(21x+8)), so:We get rid of parentheses
2(21x+8)
We multiply parentheses
42x+16
Back to the equation:
-(42x+16)
13x-42x-16-6=0
We add all the numbers together, and all the variables
-29x-22=0
We move all terms containing x to the left, all other terms to the right
-29x=22
x=22/-29
x=-22/29
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