3+x/3=18 - solution

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Solution for 3+x/3=18 equation:

x in (-oo:+oo)

x/3+3 = 18 // - 18

x/3-18+3 = 0

1/3*x-15 = 0 // + 15

1/3*x = 15 // : 1/3

x = 15/1/3

x = 45

x = 45

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