Question

In trei trei saci erau 237 kg de cartofi.Dupa cedin fiecare sac sa vandut aceasi csntitate de cartofi in primul sac au ramas 26kg in al doilea 35kg si in al treilea 38kg . Cate kg de cartofi au fost la inceput in fiecare sac?

Answer 1

a+b+c=237
a-x=26=> a=26+x
b-x=35=> b=35+x
c-x=38=> c=38+x

26+x+35+x+38+x=237
3x+99=237
3x=138
x=46

a=26+46=72
b=35+46=81
c=38+46=84

Answer 2

26kg+35kgt+38kg =99kg
237kg-99kg=138kg
138kg:3=46kg
in primul= 26kg+46kg=72kg
in al doilea= 35kg+46kg=81kg
in al treilea= 38kg+46kg=84kg
in total= 72kg+81kg+84kg= 237kg