-15b+21+5=-19

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Solution for -15b+21+5=-19 equation: 



-15b+21+5=-19

We move all terms to the left:

-15b+21+5-(-19)=0

We add all the numbers together, and all the variables

-15b+45=0

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

-15b=-45

b=-45/-15

b=+3

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