Răspuns :
Răspuns:
9. a+b+c=80
a=3*b
c=a+b
le adunam: 3b+b+a+b=80
5b+a=80
5b+3b=80
8b=80 rezulta ca b=80/8=b=8
a=3*8=24
c=24+8=32
10. a+b+c=72
b=3*a
c=4*a
a+3a+4a=72
8a=72 rezulta ca a=72/8=a=9
b=3*9=27
c=4*9=36
Răspuns:
9. a+b+c=80
a=3*b
c=a+b
le adunam: 3b+b+a+b=80
5b+a=80
5b+3b=80
8b=80 rezulta ca b=80/8=b=8
a=3*8=24
c=24+8=32
10. a+b+c=72
b=3*a
c=4*a
a+3a+4a=72
8a=72 rezulta ca a=72/8=a=9
b=3*9=27
c=4*9=36