x+(x-9)=45

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Solution for x+(x-9)=45 equation: 



x+(x-9)=45

We move all terms to the left:

x+(x-9)-(45)=0

We get rid of parentheses

x+x-9-45=0

We add all the numbers together, and all the variables

2x-54=0

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

2x=54

x=54/2

x=27

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