-20=-7x+5(3x+12)

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Solution for -20=-7x+5(3x+12) equation: 



-20=-7x+5(3x+12)

We move all terms to the left:

-20-(-7x+5(3x+12))=0



We calculate terms in parentheses: -(-7x+5(3x+12)), so:

-7x+5(3x+12)

We multiply parentheses

-7x+15x+60

We add all the numbers together, and all the variables

8x+60

Back to the equation:

-(8x+60)



We get rid of parentheses

-8x-60-20=0

We add all the numbers together, and all the variables

-8x-80=0

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

-8x=80

x=80/-8

x=-10

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