Răspuns :
Răspuns:
3/5=x/10
3*10/5=6
=> x= 6
7/x=21/15
15*7/21=105/21=5
=> x=5
Răspuns:
3=x
5 10
3 ori 10=5 ori x
30=5x
x=30:5
x=6
7=21
x 15
15 ori 7=x ori 21
105=21x
x=105:21
x=5
Răspuns:
3/5=x/10
3*10/5=6
=> x= 6
7/x=21/15
15*7/21=105/21=5
=> x=5
Răspuns:
3=x
5 10
3 ori 10=5 ori x
30=5x
x=30:5
x=6
7=21
x 15
15 ori 7=x ori 21
105=21x
x=105:21
x=5