Răspuns :
X-numarul gastelor
Y- numarul oilor
X+Y=43
2X+4Y=124
x=43-y
2(43-y)+4y=124
x-43-y
86-2y+4y=124
2y=38
y=19
x=43-19=24
R/S:
19 oi
24 gaste
Y- numarul oilor
X+Y=43
2X+4Y=124
x=43-y
2(43-y)+4y=124
x-43-y
86-2y+4y=124
2y=38
y=19
x=43-19=24
R/S:
19 oi
24 gaste
presupunem ca sunt numai oi
43x3=172 picioare
172-124=48 picioare gaste
48:2=24 gaste
43-24=19 oi
19x4=76
43x3=172 picioare
172-124=48 picioare gaste
48:2=24 gaste
43-24=19 oi
19x4=76