7=1/3b

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Solution for 7=1/3b equation: 


b in (-oo:+oo)

7 = (1/3)*b // - (1/3)*b

7-((1/3)*b) = 0

(-1/3)*b+7 = 0

7-1/3*b = 0 // - 7

-1/3*b = -7 // : -1/3

b = -7/(-1/3)

b = 21

b = 21

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