2r/3=7

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Solution for 2r/3=7 equation: 


r in (-oo:+oo)

(2*r)/3 = 7 // - 7

(2*r)/3-7 = 0

2/3*r-7 = 0 // + 7

2/3*r = 7 // : 2/3

r = 7/2/3

r = 21/2

r = 21/2

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