Răspuns:
Explicație pas cu pas:
a + b + c = 113/12
b = 2a
b = c - 3/2
c = b + 3/2 = 2a + 3/2
a + 2a + 2a + 3/2 = 113/12
5a = 113/12 - 3/2 = 113/12 - 18/12 = 95/12
a = 95/12 : 5 = 95/12 * 1/5 = 19/12
b = 2 x 19/12 = 19/6
c = b + 3/2 = 19/6 + 3/2 = 19/6 + 9/6 = 28/6 = 14/3