X=7+n

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Solution for X=7+n equation: 



X=7+X

We move all terms to the left:

X-(7+X)=0

We add all the numbers together, and all the variables

X-(X+7)=0

We get rid of parentheses

X-X-7=0

We add all the numbers together, and all the variables

-7!=0

There is no solution for this equation

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