40+x=2(9+x)

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Solution for 40+x=2(9+x) equation: 



40+x=2(9+x)

We move all terms to the left:

40+x-(2(9+x))=0

We add all the numbers together, and all the variables

x-(2(x+9))+40=0



We calculate terms in parentheses: -(2(x+9)), so:

2(x+9)

We multiply parentheses

2x+18

Back to the equation:

-(2x+18)



We get rid of parentheses

x-2x-18+40=0

We add all the numbers together, and all the variables

-1x+22=0

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

-x=-22

x=-22/-1

x=+22

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