-4x-9+x=x+3x

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Solution for -4x-9+x=x+3x equation: 



-4x-9+x=x+3x

We move all terms to the left:

-4x-9+x-(x+3x)=0

We add all the numbers together, and all the variables

-4x+x-(+4x)-9=0

We add all the numbers together, and all the variables

-3x-(+4x)-9=0

We get rid of parentheses

-3x-4x-9=0

We add all the numbers together, and all the variables

-7x-9=0

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

-7x=9

x=9/-7

x=-1+2/7

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