4R/9-4/9=R/7

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Solution for 4R/9-4/9=R/7 equation: 


R in (-oo:+oo)

(4*R)/9-(4/9) = R/7 // - R/7

(4*R)/9-(R/7)-(4/9) = 0

(4*R)/9-(R/7)-4/9 = 0

19/63*R-4/9 = 0 // + 4/9

19/63*R = 4/9 // : 19/63

R = 4/9/19/63

R = 28/19

R = 28/19

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