z/5-4

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Solution for z/5-4 equation: 


z in (-oo:+oo)

z/5 > -4 // + 4

z/5+4 > 0

1/5*z+4 > 0 // - 4

1/5*z > -4 // : 1/5

z > -4/1/5

z > -20

z in (-20:+oo)

(-20:+oo)

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