3x+30=6x-12=90

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Solution for 3x+30=6x-12=90 equation: 



3x+30=6x-12=90

We move all terms to the left:

3x+30-(6x-12)=0

We get rid of parentheses

3x-6x+12+30=0

We add all the numbers together, and all the variables

-3x+42=0

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

-3x=-42

x=-42/-3

x=+14

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