30-7x=6x-9

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Solution for 30-7x=6x-9 equation: 



30-7x=6x-9

We move all terms to the left:

30-7x-(6x-9)=0

We get rid of parentheses

-7x-6x+9+30=0

We add all the numbers together, and all the variables

-13x+39=0

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

-13x=-39

x=-39/-13

x=+3

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