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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

x-(2(-4x))-7=0



We calculate terms in parentheses: -(2(-4x)), so:

2(-4x)

We multiply parentheses

-8x

Back to the equation:

-(-8x)



We get rid of parentheses

x+8x-7=0

We add all the numbers together, and all the variables

9x-7=0

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

9x=7

x=7/9

x=7/9

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