x+x+x+1=x+15

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Solution for x+x+x+1=x+15 equation: 



x+x+x+1=x+15

We move all terms to the left:

x+x+x+1-(x+15)=0

We add all the numbers together, and all the variables

3x-(x+15)+1=0

We get rid of parentheses

3x-x-15+1=0

We add all the numbers together, and all the variables

2x-14=0

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

2x=14

x=14/2

x=7

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