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7=3(2x-4x)
We move all terms to the left:
7-(3(2x-4x))=0
We add all the numbers together, and all the variables
-(3(-2x))+7=0
We calculate terms in parentheses: -(3(-2x)), so:We get rid of parentheses
3(-2x)
We multiply parentheses
-6x
Back to the equation:
-(-6x)
6x+7=0
We move all terms containing x to the left, all other terms to the right
6x=-7
x=-7/6
x=-1+1/6
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