-3x-30=4x+12

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Solution for -3x-30=4x+12 equation: 



-3x-30=4x+12

We move all terms to the left:

-3x-30-(4x+12)=0

We get rid of parentheses

-3x-4x-12-30=0

We add all the numbers together, and all the variables

-7x-42=0

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

-7x=42

x=42/-7

x=-6

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