-2/5z=-4

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


z in (-oo:+oo)

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

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

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

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

z = -4/(-2/5)

z = 10

z = 10

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