4/13r=2/7

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Solution for 4/13r=2/7 equation: 


r in (-oo:+oo)

(4/13)*r = 2/7 // - 2/7

(4/13)*r-(2/7) = 0

(4/13)*r-2/7 = 0

4/13*r-2/7 = 0 // + 2/7

4/13*r = 2/7 // : 4/13

r = 2/7/4/13

r = 13/14

r = 13/14

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