3x+6=9x+30=90

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Solution for 3x+6=9x+30=90 equation: 



3x+6=9x+30=90

We move all terms to the left:

3x+6-(9x+30)=0

We get rid of parentheses

3x-9x-30+6=0

We add all the numbers together, and all the variables

-6x-24=0

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

-6x=24

x=24/-6

x=-4

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