8=30+7x

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Solution for 8=30+7x equation: 



8=30+7x

We move all terms to the left:

8-(30+7x)=0

We add all the numbers together, and all the variables

-(7x+30)+8=0

We get rid of parentheses

-7x-30+8=0

We add all the numbers together, and all the variables

-7x-22=0

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

-7x=22

x=22/-7

x=-3+1/7

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