-25+4/9b=-21

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Solution for -25+4/9b=-21 equation: 



-25+4/9b=-21

We move all terms to the left:

-25+4/9b-(-21)=0



Domain of the equation: 9b!=0

b!=0/9

b!=0

b∈R



We add all the numbers together, and all the variables

4/9b-4=0

We multiply all the terms by the denominator


-4*9b+4=0

Wy multiply elements

-36b+4=0

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

-36b=-4

b=-4/-36

b=1/9

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