3/4z=-21

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Solution for 3/4z=-21 equation: 


z in (-oo:+oo)

(3/4)*z = -21 // + 21

(3/4)*z+21 = 0

3/4*z+21 = 0 // - 21

3/4*z = -21 // : 3/4

z = -21/3/4

z = -28

z = -28

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