Răspuns :
Răspuns:
a=fusta
b=bluza
c=rochita
a+b+c=81
b=a+15
c=2×b rezulta c= 2×(a+15) =2a+30
a+a+15+2a+30=81
4a=81-45
4a=36
a=36:4
a=9
b=a+15
b=9+15
b=24
c=2a+30
c=2×9+30
c=48
V:9+24+48=81
Răspuns:
a=fusta
b=bluza
c=rochita
a+b+c=81
b=a+15
c=2×b rezulta c= 2×(a+15) =2a+30
a+a+15+2a+30=81
4a=81-45
4a=36
a=36:4
a=9
b=a+15
b=9+15
b=24
c=2a+30
c=2×9+30
c=48
V:9+24+48=81