7*m-15=8m+20-m

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Solution for 7*m-15=8m+20-m equation: 



7m-15=8m+20-m

We move all terms to the left:

7m-15-(8m+20-m)=0

We add all the numbers together, and all the variables

7m-(7m+20)-15=0

We get rid of parentheses

7m-7m-20-15=0

We add all the numbers together, and all the variables

-35!=0

There is no solution for this equation

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