42=-7x-3x

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Solution for 42=-7x-3x equation: 



42=-7x-3x

We move all terms to the left:

42-(-7x-3x)=0

We add all the numbers together, and all the variables

-(-10x)+42=0

We get rid of parentheses

10x+42=0

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

10x=-42

x=-42/10

x=-4+1/5

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