X-9=7x-51

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Solution for X-9=7x-51 equation: 



X-9=7X-51

We move all terms to the left:

X-9-(7X-51)=0

We get rid of parentheses

X-7X+51-9=0

We add all the numbers together, and all the variables

-6X+42=0

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

-6X=-42

X=-42/-6

X=+7

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