6x+x=3x+81

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Solution for 6x+x=3x+81 equation: 



6x+x=3x+81

We move all terms to the left:

6x+x-(3x+81)=0

We add all the numbers together, and all the variables

7x-(3x+81)=0

We get rid of parentheses

7x-3x-81=0

We add all the numbers together, and all the variables

4x-81=0

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

4x=81

x=81/4

x=20+1/4

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