4/7x-9=3 - solution

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Solution for 4/7x-9=3 equation:

x in (-oo:+oo)

(4/7)*x-9 = 3 // - 3

(4/7)*x-9-3 = 0

4/7*x-12 = 0 // + 12

4/7*x = 12 // : 4/7

x = 12/4/7

x = 21

x = 21

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