x/3-x/7=8 - solution

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Solution for x/3-x/7=8 equation:

x in (-oo:+oo)

x/3-(x/7) = 8 // - 8

x/3-(x/7)-8 = 0

4/21*x-8 = 0 // + 8

4/21*x = 8 // : 4/21

x = 8/4/21

x = 42

x = 42

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