-90=-3x-3(6-5x)

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Solution for -90=-3x-3(6-5x) equation: 



-90=-3x-3(6-5x)

We move all terms to the left:

-90-(-3x-3(6-5x))=0

We add all the numbers together, and all the variables

-(-3x-3(-5x+6))-90=0



We calculate terms in parentheses: -(-3x-3(-5x+6)), so:

-3x-3(-5x+6)

We multiply parentheses

-3x+15x-18

We add all the numbers together, and all the variables

12x-18

Back to the equation:

-(12x-18)



We get rid of parentheses

-12x+18-90=0

We add all the numbers together, and all the variables

-12x-72=0

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

-12x=72

x=72/-12

x=-6

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