4/5z+12=20 - solution

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Solution for 4/5z+12=20 equation:

z in (-oo:+oo)

(4/5)*z+12 = 20 // - 20

(4/5)*z-20+12 = 0

4/5*z-8 = 0 // + 8

4/5*z = 8 // : 4/5

z = 8/4/5

z = 10

z = 10

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