421/280=4/7b+b+7/8

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Solution for 421/280=4/7b+b+7/8 equation: 


b in (-oo:+oo)

421/280 = (4/7)*b+b+7/8 // - (4/7)*b+b+7/8

421/280-((4/7)*b)-b-(7/8) = 0

(-4/7)*b-b+421/280-7/8 = 0

22/35-11/7*b = 0 // - 22/35

-11/7*b = -22/35 // : -11/7

b = -22/35/(-11/7)

b = 2/5

b = 2/5

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