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15x-20=5(3x-4)
We move all terms to the left:
15x-20-(5(3x-4))=0
We calculate terms in parentheses: -(5(3x-4)), so:We get rid of parentheses
5(3x-4)
We multiply parentheses
15x-20
Back to the equation:
-(15x-20)
15x-15x+20-20=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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