15-x=-3(x-1)

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



15-x=-3(x-1)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

-3(x-1)

We multiply parentheses

-3x+3

Back to the equation:

-(-3x+3)



We get rid of parentheses

-1x+3x-3+15=0

We add all the numbers together, and all the variables

2x+12=0

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

2x=-12

x=-12/2

x=-6

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