Question

3 supra a,b supra 5 atunci 14-ab= cu?dau coroana

Answer 1

3/a = b/5

a = (5 × 3)/b

a = 15/b

3/a = b/5

b = (3 × 5)/a

b = 15/a

14 - ab = 14 - 15 = - 1