2/7=1/9b

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Solution for 2/7=1/9b equation: 


b in (-oo:+oo)

2/7 = (1/9)*b // - (1/9)*b

2/7-((1/9)*b) = 0

(-1/9)*b+2/7 = 0

2/7-1/9*b = 0 // - 2/7

-1/9*b = -2/7 // : -1/9

b = -2/7/(-1/9)

b = 18/7

b = 18/7

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