x+13=2(x+9)

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Solution for x+13=2(x+9) equation: 



x+13=2(x+9)

We move all terms to the left:

x+13-(2(x+9))=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+13=0

We add all the numbers together, and all the variables

-1x-5=0

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

-x=5

x=5/-1

x=-5

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