x+(x+9)=25

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Solution for x+(x+9)=25 equation: 



x+(x+9)=25

We move all terms to the left:

x+(x+9)-(25)=0

We get rid of parentheses

x+x+9-25=0

We add all the numbers together, and all the variables

2x-16=0

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

2x=16

x=16/2

x=8

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