R/9-17=21

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Solution for R/9-17=21 equation: 


R in (-oo:+oo)

R/9-17 = 21 // - 21

R/9-21-17 = 0

1/9*R-38 = 0 // + 38

1/9*R = 38 // : 1/9

R = 38/1/9

R = 342

R = 342

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