u/3=42 - solution

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Solution for u/3=42 equation:

u in (-oo:+oo)

u/3 = 42 // - 42

u/3-42 = 0

1/3*u-42 = 0 // + 42

1/3*u = 42 // : 1/3

u = 42/1/3

u = 126

u = 126

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