7/3b=-21

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Solution for 7/3b=-21 equation: 



7/3b=-21

We move all terms to the left:

7/3b-(-21)=0



Domain of the equation: 3b!=0

b!=0/3

b!=0

b∈R



We add all the numbers together, and all the variables

7/3b+21=0

We multiply all the terms by the denominator


21*3b+7=0

Wy multiply elements

63b+7=0

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

63b=-7

b=-7/63

b=-1/9

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