9x/15=21/15

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Solution for 9x/15=21/15 equation: 


x in (-oo:+oo)

(9*x)/15 = 21/15 // - 21/15

(9*x)/15-(21/15) = 0

(9*x)/15-7/5 = 0

3/5*x-7/5 = 0 // + 7/5

3/5*x = 7/5 // : 3/5

x = 7/5/3/5

x = 7/3

x = 7/3

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