40=x+(28+x)

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Solution for 40=x+(28+x) equation: 



40=x+(28+x)

We move all terms to the left:

40-(x+(28+x))=0

We add all the numbers together, and all the variables

-(x+(x+28))+40=0



We calculate terms in parentheses: -(x+(x+28)), so:

x+(x+28)

We get rid of parentheses

x+x+28

We add all the numbers together, and all the variables

2x+28

Back to the equation:

-(2x+28)



We get rid of parentheses

-2x-28+40=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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