(3x+15)+2x=90

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Solution for (3x+15)+2x=90 equation: 



(3x+15)+2x=90

We move all terms to the left:

(3x+15)+2x-(90)=0

We add all the numbers together, and all the variables

2x+(3x+15)-90=0

We get rid of parentheses

2x+3x+15-90=0

We add all the numbers together, and all the variables

5x-75=0

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

5x=75

x=75/5

x=15

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