2x+3x+4x=81-4x

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Solution for 2x+3x+4x=81-4x equation: 



2x+3x+4x=81-4x

We move all terms to the left:

2x+3x+4x-(81-4x)=0

We add all the numbers together, and all the variables

2x+3x+4x-(-4x+81)=0

We add all the numbers together, and all the variables

9x-(-4x+81)=0

We get rid of parentheses

9x+4x-81=0

We add all the numbers together, and all the variables

13x-81=0

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

13x=81

x=81/13

x=6+3/13

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