r/7=4

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Solution for r/7=4 equation: 


r in (-oo:+oo)

r/7 = 4 // - 4

r/7-4 = 0

1/7*r-4 = 0 // + 4

1/7*r = 4 // : 1/7

r = 4/1/7

r = 28

r = 28

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