x+x/20=42 - solution

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Solution for x+x/20=42 equation:

x in (-oo:+oo)

x+x/20 = 42 // - 42

x+x/20-42 = 0

21/20*x-42 = 0 // + 42

21/20*x = 42 // : 21/20

x = 42/21/20

x = 40

x = 40

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