Răspuns :
a) 48:Z= Y,rest 3
48=Z x Y + 3
48=5 x 9 + 3
b) 107:Z=15 ,rest 2
Z= (107-2) : 15 = 7
c) Z:3=7 ,rest Y (sunt trei solutii)
Z=21 => 21 : 3 = 7 , rest 0
Z=22 => 22 : 3 = 7 , rest 1
Z= 23 => 23 : 3 = 7 ,rest 2
( => inseamna "rezulta")
48:Z= Y,rest 3
48=Z x Y + 3
48=5 x 9 + 3
b) 107:Z=15 ,rest 2
Z= (107-2) : 15 = 7
c) Z:3=7 rest y
Z=21 => 21 : 3 = 7 , rest 0
Z=22 => 22 : 3 = 7 , rest 1
Z= 23 => 23 : 3 = 7 ,rest 2