Răspuns :
a+b=2003
a=3b+27⇒3b+b+27=2003⇒4b=2003-27⇒4b=1976⇒b=1976:4⇒b=494
a=2003-494⇒a=1509
Răspuns final: a=1509; b=494.
a=3b+27⇒3b+b+27=2003⇒4b=2003-27⇒4b=1976⇒b=1976:4⇒b=494
a=2003-494⇒a=1509
Răspuns final: a=1509; b=494.
[tex]a+b=2003 \\ a=3b+27 \\ Inlocuim~in~suma: \\ 3b+27+b=2003 \\ 4b+27=2003 \\ 4b=2003-27 \\ 4b=1976 \\ b=1976:4 \\ b=494 \\ a=3*494+27 \\ a=1482+27 \\ a=1509.[/tex]