-15x-15=4(-x-2x)

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Solution for -15x-15=4(-x-2x) equation: 



-15x-15=4(-x-2x)

We move all terms to the left:

-15x-15-(4(-x-2x))=0

We add all the numbers together, and all the variables

-15x-(4(-3x))-15=0



We calculate terms in parentheses: -(4(-3x)), so:

4(-3x)

We multiply parentheses

-12x

Back to the equation:

-(-12x)



We get rid of parentheses

-15x+12x-15=0

We add all the numbers together, and all the variables

-3x-15=0

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

-3x=15

x=15/-3

x=-5

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