42-3x=3+x

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



42-3x=3+x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-3x-x-3+42=0

We add all the numbers together, and all the variables

-4x+39=0

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

-4x=-39

x=-39/-4

x=9+3/4

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