31=3x+5(x+3)

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Solution for 31=3x+5(x+3) equation: 



31=3x+5(x+3)

We move all terms to the left:

31-(3x+5(x+3))=0



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

3x+5(x+3)

We multiply parentheses

3x+5x+15

We add all the numbers together, and all the variables

8x+15

Back to the equation:

-(8x+15)



We get rid of parentheses

-8x-15+31=0

We add all the numbers together, and all the variables

-8x+16=0

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

-8x=-16

x=-16/-8

x=+2

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