(x-7)+(x-7+3)+x=31

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Solution for (x-7)+(x-7+3)+x=31 equation: 



(x-7)+(x-7+3)+x=31

We move all terms to the left:

(x-7)+(x-7+3)+x-(31)=0

We add all the numbers together, and all the variables

(x-7)+(x-4)+x-31=0

We add all the numbers together, and all the variables

x+(x-7)+(x-4)-31=0

We get rid of parentheses

x+x+x-7-4-31=0

We add all the numbers together, and all the variables

3x-42=0

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

3x=42

x=42/3

x=14

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