15x+6x-18=90

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Solution for 15x+6x-18=90 equation: 



15x+6x-18=90

We move all terms to the left:

15x+6x-18-(90)=0

We add all the numbers together, and all the variables

21x-108=0

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

21x=108

x=108/21

x=5+1/7

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