-x+9=-4x+30

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Solution for -x+9=-4x+30 equation: 



-x+9=-4x+30

We move all terms to the left:

-x+9-(-4x+30)=0

We add all the numbers together, and all the variables

-1x-(-4x+30)+9=0

We get rid of parentheses

-1x+4x-30+9=0

We add all the numbers together, and all the variables

3x-21=0

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

3x=21

x=21/3

x=7

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