15=-3(x-1)+9x=

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Solution for 15=-3(x-1)+9x= equation: 



15=-3(x-1)+9x=

We move all terms to the left:

15-(-3(x-1)+9x)=0



We calculate terms in parentheses: -(-3(x-1)+9x), so:

-3(x-1)+9x

We add all the numbers together, and all the variables

9x-3(x-1)

We multiply parentheses

9x-3x+3

We add all the numbers together, and all the variables

6x+3

Back to the equation:

-(6x+3)



We get rid of parentheses

-6x-3+15=0

We add all the numbers together, and all the variables

-6x+12=0

We move all terms containing x to the left, all other terms to the right

-6x=-12

x=-12/-6

x=+2

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