Question

in bradul de craciun straluceau 125 de globulete .globulete rosii si galbene erau 89 iar galbene si albe 75 cate globulete din fiecare straluceau in bradut

Answer 1

r+g+a=125
r+g=89
g+a=75
89+a=125
a=125-89
a=36 globulete albe
g+36=75
g=75-36
g=39 globulete galbene
r+39=89
r=89-39
r=50 globulete rosii
V: 50+39+36=125 globulete rosii+galbene+albe

Answer 2

r+g+a=125
r+g=89
a=125-89=36 albe
g+a=75
g=75-36=39 galbene
r+g=89
r=89-39=50 rosii
36+39+50=125