2/7r=28

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Solution for 2/7r=28 equation: 


r in (-oo:+oo)

(2/7)*r = 28 // - 28

(2/7)*r-28 = 0

2/7*r-28 = 0 // + 28

2/7*r = 28 // : 2/7

r = 28/2/7

r = 98

r = 98

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