(3x+15)+75=135

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Solution for (3x+15)+75=135 equation: 



(3x+15)+75=135

We move all terms to the left:

(3x+15)+75-(135)=0

We add all the numbers together, and all the variables

(3x+15)-60=0

We get rid of parentheses

3x+15-60=0

We add all the numbers together, and all the variables

3x-45=0

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

3x=45

x=45/3

x=15

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