4/5x=21

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Solution for 4/5x=21 equation: 


x in (-oo:+oo)

(4/5)*x = 21 // - 21

(4/5)*x-21 = 0

4/5*x-21 = 0 // + 21

4/5*x = 21 // : 4/5

x = 21/4/5

x = 105/4

x = 105/4

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