Question

In doua cutii sunt 53bile,in a doua cutie sunt cu trei mai putine decat in prima,cate bile sunt in fiecare cutie?

Answer 1

x-prima cutie
y-a doua cutie
x+y=53
y=x-3
x+x-3=53
2x=53+3
2x=56
x=56:2
x=28
y=x-3
y=28-3
y=25

Answer 2

a+b=53
b=a-3

a+a-3=53
2a-3=53
2a=53-3
2a=50
a=50/2
a=25
b=53-25
b=28

a= prima cutie  !!!!!
b=a doua cutie !!!!!