Question

Daca din dublul unui numar scad jumatatea sa ,obtin 72.Afla numerele.

Answer 1

2a-a/2=72  *2
4a-a=144
3a=144
a=48 numarul cautat

Answer 2

2y-y:2=72
y:2=a
4a-a=72
3a=72
a=72:3=24

y:2=24
y=24*2=48
2y=48*2=96