2/9r=5/7

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Solution for 2/9r=5/7 equation: 


r in (-oo:+oo)

(2/9)*r = 5/7 // - 5/7

(2/9)*r-(5/7) = 0

(2/9)*r-5/7 = 0

2/9*r-5/7 = 0 // + 5/7

2/9*r = 5/7 // : 2/9

r = 5/7/2/9

r = 45/14

r = 45/14

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