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4+7x-4=2(4+7x)
We move all terms to the left:
4+7x-4-(2(4+7x))=0
We add all the numbers together, and all the variables
7x-(2(7x+4))+4-4=0
We add all the numbers together, and all the variables
7x-(2(7x+4))=0
We calculate terms in parentheses: -(2(7x+4)), so:We get rid of parentheses
2(7x+4)
We multiply parentheses
14x+8
Back to the equation:
-(14x+8)
7x-14x-8=0
We add all the numbers together, and all the variables
-7x-8=0
We move all terms containing x to the left, all other terms to the right
-7x=8
x=8/-7
x=-1+1/7
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