3/10r=9

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Solution for 3/10r=9 equation: 


r in (-oo:+oo)

(3/10)*r = 9 // - 9

(3/10)*r-9 = 0

3/10*r-9 = 0 // + 9

3/10*r = 9 // : 3/10

r = 9/3/10

r = 30

r = 30

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