(x/4)-(x/7)=9

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Solution for (x/4)-(x/7)=9 equation: 


x in (-oo:+oo)

x/4-(x/7) = 9 // - 9

x/4-(x/7)-9 = 0

3/28*x-9 = 0 // + 9

3/28*x = 9 // : 3/28

x = 9/3/28

x = 84

x = 84

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