1/2u-1/5=-1/7

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Solution for 1/2u-1/5=-1/7 equation: 


u in (-oo:+oo)

(1/2)*u-(1/5) = -1/7 // + -1/7

(1/2)*u-(1/5)-(-1/7) = 0

(1/2)*u-1/5+1/7 = 0

1/2*u-2/35 = 0 // + 2/35

1/2*u = 2/35 // : 1/2

u = 2/35/1/2

u = 4/35

u = 4/35

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