2/3r+9=75

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Solution for 2/3r+9=75 equation: 


r in (-oo:+oo)

(2/3)*r+9 = 75 // - 75

(2/3)*r-75+9 = 0

2/3*r-66 = 0 // + 66

2/3*r = 66 // : 2/3

r = 66/2/3

r = 99

r = 99

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