7z+15=7z+13

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Solution for 7z+15=7z+13 equation: 



7z+15=7z+13

We move all terms to the left:

7z+15-(7z+13)=0

We get rid of parentheses

7z-7z-13+15=0

We add all the numbers together, and all the variables

2!=0

There is no solution for this equation

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