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63=6x+3(3x+4)
We move all terms to the left:
63-(6x+3(3x+4))=0
We calculate terms in parentheses: -(6x+3(3x+4)), so:We get rid of parentheses
6x+3(3x+4)
We multiply parentheses
6x+9x+12
We add all the numbers together, and all the variables
15x+12
Back to the equation:
-(15x+12)
-15x-12+63=0
We add all the numbers together, and all the variables
-15x+51=0
We move all terms containing x to the left, all other terms to the right
-15x=-51
x=-51/-15
x=3+2/5
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