(2.5x)+(3.5x)=90

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Solution for (2.5x)+(3.5x)=90 equation: 



(2.5x)+(3.5x)=90

We move all terms to the left:

(2.5x)+(3.5x)-(90)=0

We add all the numbers together, and all the variables

(+2.5x)+(+3.5x)-90=0

We get rid of parentheses

2.5x+3.5x-90=0

We add all the numbers together, and all the variables

6x-90=0

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

6x=90

x=90/6

x=15

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