1/3r-20=-5

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Solution for 1/3r-20=-5 equation: 


r in (-oo:+oo)

(1/3)*r-20 = -5 // + 5

(1/3)*r-20+5 = 0

1/3*r-15 = 0 // + 15

1/3*r = 15 // : 1/3

r = 15/1/3

r = 45

r = 45

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