(2x-3)+(x+9)=129

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Solution for (2x-3)+(x+9)=129 equation: 



(2x-3)+(x+9)=129

We move all terms to the left:

(2x-3)+(x+9)-(129)=0

We get rid of parentheses

2x+x-3+9-129=0

We add all the numbers together, and all the variables

3x-123=0

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

3x=123

x=123/3

x=41

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