Răspuns :
a+b+c=285
a;b=3r5
c;a=3r5
a=3b+5
c=3a+5
--------------------------
c=3(3b+5)+5
c=9b+20
atunci rezulta:
3b+5+b+9b+20=285
13b=285-25
13b=260
b=260:13
b=20
a=3x20+5
a=60+5
a=65
c=3x65+5
c=195+5
c=200
VERIFICARE a+b+c=285
65+20+200=285
a;b=3r5
c;a=3r5
a=3b+5
c=3a+5
--------------------------
c=3(3b+5)+5
c=9b+20
atunci rezulta:
3b+5+b+9b+20=285
13b=285-25
13b=260
b=260:13
b=20
a=3x20+5
a=60+5
a=65
c=3x65+5
c=195+5
c=200
VERIFICARE a+b+c=285
65+20+200=285
a+b+c =285
a:b=3rest5 => a=3b+5
c:a=3 rest 5 =>c=3a+5
c=3(3b+5)+5
c=9b +20
3b+ 5 +b +9b+20 =285
13b=285-25
b=260:13
b=20
a=3 *20 +5
a=65
c=3*65+5
c=200
Sper ca te-am ajutat ! :)