2x/5=21/7

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Solution for 2x/5=21/7 equation: 


x in (-oo:+oo)

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

(2*x)/5-(21/7) = 0

(2*x)/5-3 = 0

2/5*x-3 = 0 // + 3

2/5*x = 3 // : 2/5

x = 3/2/5

x = 15/2

x = 15/2

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