3/5b=21

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Solution for 3/5b=21 equation: 


b in (-oo:+oo)

(3/5)*b = 21 // - 21

(3/5)*b-21 = 0

3/5*b-21 = 0 // + 21

3/5*b = 21 // : 3/5

b = 21/3/5

b = 35

b = 35

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