x+9=9-4x

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



x+9=9-4x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

x+4x-9+9=0

We add all the numbers together, and all the variables

5x=0

x=0/5

x=0

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