(7.9x+9)+(15x-8)=90

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Solution for (7.9x+9)+(15x-8)=90 equation: 



(7.9x+9)+(15x-8)=90

We move all terms to the left:

(7.9x+9)+(15x-8)-(90)=0

We get rid of parentheses

7.9x+15x+9-8-90=0

We add all the numbers together, and all the variables

22.9x-89=0

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

22.9x=89

x=89/22.9

x=3+8.8260869565217/9.9565217391304

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