Question

Găsește nr necunoscut
89:x=5 rest 4
99:y= 4 rest 3
78:z = 4 rest 2

Answer 1

x=(89-4):5
x=85:5
x=17
y=(99-3):4
y=96:4
y=24
z=(78-2):4
z=76:4
z=19