-42-9x=-3x

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Solution for -42-9x=-3x equation: 



-42-9x=-3x

We move all terms to the left:

-42-9x-(-3x)=0

We get rid of parentheses

-9x+3x-42=0

We add all the numbers together, and all the variables

-6x-42=0

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

-6x=42

x=42/-6

x=-7

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