(6x-15)=(3x+21)

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Solution for (6x-15)=(3x+21) equation:



(6x-15)=(3x+21)
We move all terms to the left:
(6x-15)-((3x+21))=0
We get rid of parentheses
6x-((3x+21))-15=0
We calculate terms in parentheses: -((3x+21)), so:
(3x+21)
We get rid of parentheses
3x+21
Back to the equation:
-(3x+21)
We get rid of parentheses
6x-3x-21-15=0
We add all the numbers together, and all the variables
3x-36=0
We move all terms containing x to the left, all other terms to the right
3x=36
x=36/3
x=12

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