1. cate oua s-au livrat initial?
4 lazi × 336 oua = 1344 oua
2. Cate oua s-au livrat unor magazine?
70 × 8 = 560 oua
3. Cate oua s-au livrat catre cele 3 cofetarii?
1344 - 560 = 784 oua
4. x-24=y/2⇒x=y/2+24⇒ 2x - y = 48⇒2x - 48 = y
x-24=z/3⇒3x-74=z⇒ 3x - z = 74⇒3x - 74 = z
x+y+z=784
x+2x-48+3x-74=784
6x=784+48+74
x=906:6=151
x = 151 de oua livrate la prima cofetarie
y = 2x - 48 = 151×2 - 48 = 254 oua livrate la a doua cofetarie
z =3x -74 = 3151 - 74 = 379 oua livrate a cea de a treia cofetarie
verificare
x + y + z = 784
151 + 254 + 379 = 784
784 = 784