-21=-2x+5(x-6)

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Solution for -21=-2x+5(x-6) equation: 



-21=-2x+5(x-6)

We move all terms to the left:

-21-(-2x+5(x-6))=0



We calculate terms in parentheses: -(-2x+5(x-6)), so:

-2x+5(x-6)

We multiply parentheses

-2x+5x-30

We add all the numbers together, and all the variables

3x-30

Back to the equation:

-(3x-30)



We get rid of parentheses

-3x+30-21=0

We add all the numbers together, and all the variables

-3x+9=0

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

-3x=-9

x=-9/-3

x=+3

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