Răspuns :
a+b+c=48
a=3b
c=a-b=3b-b=2b
inlocuim in prima ecuatie: 3b+b+2b=48
6b=48
b=8
a=3x8=24
c=2x8=16
24+8+16=48
a=3b
c=a-b=3b-b=2b
inlocuim in prima ecuatie: 3b+b+2b=48
6b=48
b=8
a=3x8=24
c=2x8=16
24+8+16=48
a+b+c=48
a=3xb
c=a-b
3xb+b+3xb-b=48
4xb+2xb=48
6xb=48
b=48:6
b=8
a=8x3
a=24
c=24-8
c=16