-b/5-7=-21

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Solution for -b/5-7=-21 equation: 



-b/5-7=-21

We move all terms to the left:

-b/5-7-(-21)=0

We add all the numbers together, and all the variables

-b/5+14=0

We multiply all the terms by the denominator


-b+14*5=0

We add all the numbers together, and all the variables

-1b+70=0

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

-b=-70

b=-70/-1

b=+70

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