(3x+9)=13

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Solution for (3x+9)=13 equation: 



(3x+9)=13

We move all terms to the left:

(3x+9)-(13)=0

We get rid of parentheses

3x+9-13=0

We add all the numbers together, and all the variables

3x-4=0

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

3x=4

x=4/3

x=1+1/3

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