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63=7(1+4x)
We move all terms to the left:
63-(7(1+4x))=0
We add all the numbers together, and all the variables
-(7(4x+1))+63=0
We calculate terms in parentheses: -(7(4x+1)), so:We get rid of parentheses
7(4x+1)
We multiply parentheses
28x+7
Back to the equation:
-(28x+7)
-28x-7+63=0
We add all the numbers together, and all the variables
-28x+56=0
We move all terms containing x to the left, all other terms to the right
-28x=-56
x=-56/-28
x=+2
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