30=7-9x

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Solution for 30=7-9x equation: 



30=7-9x

We move all terms to the left:

30-(7-9x)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

9x-7+30=0

We add all the numbers together, and all the variables

9x+23=0

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

9x=-23

x=-23/9

x=-2+5/9

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