31-(2x+10)=2(x+3)+x

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Solution for 31-(2x+10)=2(x+3)+x equation: 



31-(2x+10)=2(x+3)+x

We move all terms to the left:

31-(2x+10)-(2(x+3)+x)=0

We get rid of parentheses

-2x-(2(x+3)+x)-10+31=0



We calculate terms in parentheses: -(2(x+3)+x), so:

2(x+3)+x

We add all the numbers together, and all the variables

x+2(x+3)

We multiply parentheses

x+2x+6

We add all the numbers together, and all the variables

3x+6

Back to the equation:

-(3x+6)



We add all the numbers together, and all the variables

-2x-(3x+6)+21=0

We get rid of parentheses

-2x-3x-6+21=0

We add all the numbers together, and all the variables

-5x+15=0

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

-5x=-15

x=-15/-5

x=+3

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