7-12-15b=20-15b

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Solution for 7-12-15b=20-15b equation: 



7-12-15b=20-15b

We move all terms to the left:

7-12-15b-(20-15b)=0

We add all the numbers together, and all the variables

-15b-(-15b+20)+7-12=0

We add all the numbers together, and all the variables

-15b-(-15b+20)-5=0

We get rid of parentheses

-15b+15b-20-5=0

We add all the numbers together, and all the variables

-25!=0

There is no solution for this equation

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