-2/5s=-4

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Solution for -2/5s=-4 equation: 


s in (-oo:+oo)

(-2/5)*s = -4 // + 4

(-2/5)*s+4 = 0

4-2/5*s = 0 // - 4

-2/5*s = -4 // : -2/5

s = -4/(-2/5)

s = 10

s = 10

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