-3x-7=5+x

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Solution for -3x-7=5+x equation: 



-3x-7=5+x

We move all terms to the left:

-3x-7-(5+x)=0

We add all the numbers together, and all the variables

-3x-(x+5)-7=0

We get rid of parentheses

-3x-x-5-7=0

We add all the numbers together, and all the variables

-4x-12=0

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

-4x=12

x=12/-4

x=-3

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