(x+3)+(5x)+x=81

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Solution for (x+3)+(5x)+x=81 equation: 



(x+3)+(5x)+x=81

We move all terms to the left:

(x+3)+(5x)+x-(81)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

6x+x+3-81=0

We add all the numbers together, and all the variables

7x-78=0

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

7x=78

x=78/7

x=11+1/7

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