x/3+x/7=30 - solution

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Solution for x/3+x/7=30 equation:

x in (-oo:+oo)

x/3+x/7 = 30 // - 30

x/3+x/7-30 = 0

10/21*x-30 = 0 // + 30

10/21*x = 30 // : 10/21

x = 30/10/21

x = 63

x = 63

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