7x-9=x+30

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



7x-9=x+30

We move all terms to the left:

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

We get rid of parentheses

7x-x-30-9=0

We add all the numbers together, and all the variables

6x-39=0

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

6x=39

x=39/6

x=6+1/2

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