-30+7x=30+9x

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



-30+7x=30+9x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

7x-9x-30-30=0

We add all the numbers together, and all the variables

-2x-60=0

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

-2x=60

x=60/-2

x=-30

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