Răspuns :
1=x
2=x-11
3=x-9
3x-20=112
3x=132
x=132/3
x=44
1=44
2=x-11=44-11=33
3=x-9=44-9=35
Raspuns: 1=44, 2=33, 3=35
2=x-11
3=x-9
3x-20=112
3x=132
x=132/3
x=44
1=44
2=x-11=44-11=33
3=x-9=44-9=35
Raspuns: 1=44, 2=33, 3=35