7x-x=3(-5x-7)+3(-2-2x)

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Solution for 7x-x=3(-5x-7)+3(-2-2x) equation: 



7x-x=3(-5x-7)+3(-2-2x)

We move all terms to the left:

7x-x-(3(-5x-7)+3(-2-2x))=0

We add all the numbers together, and all the variables

7x-x-(3(-5x-7)+3(-2x-2))=0

We add all the numbers together, and all the variables

6x-(3(-5x-7)+3(-2x-2))=0



We calculate terms in parentheses: -(3(-5x-7)+3(-2x-2)), so:

3(-5x-7)+3(-2x-2)

We multiply parentheses

-15x-6x-21-6

We add all the numbers together, and all the variables

-21x-27

Back to the equation:

-(-21x-27)



We get rid of parentheses

6x+21x+27=0

We add all the numbers together, and all the variables

27x+27=0

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

27x=-27

x=-27/27

x=-1

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