X+7+8x-1=90

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Solution for X+7+8x-1=90 equation: 



X+7+8X-1=90

We move all terms to the left:

X+7+8X-1-(90)=0

We add all the numbers together, and all the variables

9X-84=0

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

9X=84

X=84/9

X=9+1/3

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