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-12x+12(7x-1)=3(12x-4)
We move all terms to the left:
-12x+12(7x-1)-(3(12x-4))=0
We multiply parentheses
-12x+84x-(3(12x-4))-12=0
We calculate terms in parentheses: -(3(12x-4)), so:We add all the numbers together, and all the variables
3(12x-4)
We multiply parentheses
36x-12
Back to the equation:
-(36x-12)
72x-(36x-12)-12=0
We get rid of parentheses
72x-36x+12-12=0
We add all the numbers together, and all the variables
36x=0
x=0/36
x=0
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