Răspuns :
x-totalul de bile
1/6 din x +12= 1/6 * x = x/6 +12 -bile rosii
x-(x/6 +12)= (6x-x-72)/6= (5x-72)/6 -restul
1/4 din (5x-72)/6 + 3= 1/4 * (5x-72)/6 + 3= (5x-72)/24+3=
= (5x-72+72)/24= 5x/24 - bile albastre
(5x-72)/6 -5x/24= (20x-288-5x)/24= (15x -288)/24 -noul rest
(15x-288)/24= 138
15x-288=138*24
15x-288= 3312
15x=3312 +288
15x= 3600
x=240 bile sunt in total
bile albe +bile galbene=138
a+g=138
a=g
a+a=138
2a=138
a=69 bile albe
g=a=69 bile galbene
240/6 +12= 40+12=52 bile rosii
5*240/24= 5*10=50 bile albastre
1/6 din x +12= 1/6 * x = x/6 +12 -bile rosii
x-(x/6 +12)= (6x-x-72)/6= (5x-72)/6 -restul
1/4 din (5x-72)/6 + 3= 1/4 * (5x-72)/6 + 3= (5x-72)/24+3=
= (5x-72+72)/24= 5x/24 - bile albastre
(5x-72)/6 -5x/24= (20x-288-5x)/24= (15x -288)/24 -noul rest
(15x-288)/24= 138
15x-288=138*24
15x-288= 3312
15x=3312 +288
15x= 3600
x=240 bile sunt in total
bile albe +bile galbene=138
a+g=138
a=g
a+a=138
2a=138
a=69 bile albe
g=a=69 bile galbene
240/6 +12= 40+12=52 bile rosii
5*240/24= 5*10=50 bile albastre
-totalul de b.
1/6 din x +12= 1/6 * x = x/6 +12 -b.r
x-(x/6 +12)= (6x-x-72)/6= (5x-72)/6 -restul
1/4 din (5x-72)/6 + 3= 1/4 * (5x-72)/6 + 3= (5x-72)/24+3=
= (5x-72+72)/24= 5x/24 - bile albastre
(5x-72)/6 -5x/24= (20x-288-5x)/24= (15x -288)/24 -noul rest
(15x-288)/24= 138
15x-288=138*24
15x-288= 3312
15x=3312 +288
15x= 3600
x=240 bile sunt in total
bile albe +bile galbene=138
a+g=138
a=g
a+a=138
2a=138
a=69 bile albe
g=a=69 b.g
240/6 +12= 40+12=52 b.r
5*240/24= 5*10=50 b.a