(7/5)x=21 - solution

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Solution for (7/5)x=21 equation:

x in (-oo:+oo)

(7/5)*x = 21 // - 21

(7/5)*x-21 = 0

7/5*x-21 = 0 // + 21

7/5*x = 21 // : 7/5

x = 21/7/5

x = 15

x = 15

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