x-15=8x

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Solution for x-15=8x equation: 



x-15=8x

We move all terms to the left:

x-15-(8x)=0

We add all the numbers together, and all the variables

-7x-15=0

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

-7x=15

x=15/-7

x=-2+1/7

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