-7x+9=-x+3x

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Solution for -7x+9=-x+3x equation: 



-7x+9=-x+3x

We move all terms to the left:

-7x+9-(-x+3x)=0

We add all the numbers together, and all the variables

-7x-(+2x)+9=0

We get rid of parentheses

-7x-2x+9=0

We add all the numbers together, and all the variables

-9x+9=0

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

-9x=-9

x=-9/-9

x=1

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