57=-5x+3(x+15)

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Solution for 57=-5x+3(x+15) equation: 



57=-5x+3(x+15)

We move all terms to the left:

57-(-5x+3(x+15))=0



We calculate terms in parentheses: -(-5x+3(x+15)), so:

-5x+3(x+15)

We multiply parentheses

-5x+3x+45

We add all the numbers together, and all the variables

-2x+45

Back to the equation:

-(-2x+45)



We get rid of parentheses

2x-45+57=0

We add all the numbers together, and all the variables

2x+12=0

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

2x=-12

x=-12/2

x=-6

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