1/5-4/5b+2/7b=-9/35

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Solution for 1/5-4/5b+2/7b=-9/35 equation: 


b in (-oo:+oo)

(2/7)*b-((4/5)*b)+1/5 = -9/35 // + -9/35

(2/7)*b-((4/5)*b)+1/5-(-9/35) = 0

(-4/5)*b+(2/7)*b+1/5+9/35 = 0

16/35-18/35*b = 0 // - 16/35

-18/35*b = -16/35 // : -18/35

b = -16/35/(-18/35)

b = 8/9

b = 8/9

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