15=5(1-x)-2(1-x)

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Solution for 15=5(1-x)-2(1-x) equation: 



15=5(1-x)-2(1-x)

We move all terms to the left:

15-(5(1-x)-2(1-x))=0

We add all the numbers together, and all the variables

-(5(-1x+1)-2(-1x+1))+15=0



We calculate terms in parentheses: -(5(-1x+1)-2(-1x+1)), so:

5(-1x+1)-2(-1x+1)

We multiply parentheses

-5x+2x+5-2

We add all the numbers together, and all the variables

-3x+3

Back to the equation:

-(-3x+3)



We get rid of parentheses

3x-3+15=0

We add all the numbers together, and all the variables

3x+12=0

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

3x=-12

x=-12/3

x=-4

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