x+4x=9+2x

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Solution for x+4x=9+2x equation: 



x+4x=9+2x

We move all terms to the left:

x+4x-(9+2x)=0

We add all the numbers together, and all the variables

x+4x-(2x+9)=0

We add all the numbers together, and all the variables

5x-(2x+9)=0

We get rid of parentheses

5x-2x-9=0

We add all the numbers together, and all the variables

3x-9=0

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

3x=9

x=9/3

x=3

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