(z-5)/7=4.2

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Solution for (z-5)/7=4.2 equation: 


z in (-oo:+oo)

(z-5)/7 = 4.2 // - 4.2

(z-5)/7-4.2 = 0

(z-5)/7+(-4.2*7)/7 = 0

z-4.2*7-5 = 0

z-34.4 = 0

(z-34.4)/7 = 0

(z-34.4)/7 = 0 // * 7

z-34.4 = 0

z-34.4 = 0 // + 34.4

z = 34.4

z = 34.4

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