Question

x:y=4 rest 3 , y:z=5 rest 4 , x+y+z=179 z=? x=? y=?​

Answer 1

Răspuns:

Explicație pas cu pas:

x = 4y + 3

y = 5z + 4

x = 4(5z + 4) + 3 = 20z + 16 + 3 = 20z + 19

x + y + z = 179

20z + 19 + 5z + 4 + z = 179

26z + 23 = 179

26z = 179 - 23 = 156

z = 156 : 26 = 6

y = 5*6 + 4 = 34

x = 20*6 + 19 = 139