Question

a si b apartin Q*.
3a+2b 12 supra a+7b 23 = 12 supra 23


Calculati a supra b

Answer 1

(3a + 2b) x 12 / ( a + 7b) x 23 = 12/23, inmultim cu 23/12
(3a + 2b)/(a + 7b) = 1
3a + 2b = a + 7b
2a = 5b
a/b = 5/2