r/7=15

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Solution for r/7=15 equation: 


r in (-oo:+oo)

r/7 = 15 // - 15

r/7-15 = 0

1/7*r-15 = 0 // + 15

1/7*r = 15 // : 1/7

r = 15/1/7

r = 105

r = 105

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