Răspuns :
A= 4b +3
4b +3 -B=63
3b+3=63
3b=63-3
3b =60
B=60:3
B=20
A=4x20+3
A= 80+3
A=83
Verificare :
83-20(a-B)=63
80:20=4 rest 3
Succes!
4b +3 -B=63
3b+3=63
3b=63-3
3b =60
B=60:3
B=20
A=4x20+3
A= 80+3
A=83
Verificare :
83-20(a-B)=63
80:20=4 rest 3
Succes!