x-9+7x=30

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Solution for x-9+7x=30 equation: 



x-9+7x=30

We move all terms to the left:

x-9+7x-(30)=0

We add all the numbers together, and all the variables

8x-39=0

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

8x=39

x=39/8

x=4+7/8

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