42=(2x+8)+(x+3)

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Solution for 42=(2x+8)+(x+3) equation: 



42=(2x+8)+(x+3)

We move all terms to the left:

42-((2x+8)+(x+3))=0



We calculate terms in parentheses: -((2x+8)+(x+3)), so:

(2x+8)+(x+3)

We get rid of parentheses

2x+x+8+3

We add all the numbers together, and all the variables

3x+11

Back to the equation:

-(3x+11)



We get rid of parentheses

-3x-11+42=0

We add all the numbers together, and all the variables

-3x+31=0

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

-3x=-31

x=-31/-3

x=10+1/3

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