Răspuns :
[tex]a+b=403 \\
a=23+18b \\
Inlocuim: \\
23+18b+b=403 \\
19b=380 \\
\boxed{b=20} \\
a=403-20 \\
\boxed{b=383}[/tex]
tare, am avut si eu problema asta.
x+y=403 x=18y +23 19y+23=403 19=403-23 19y=380 y=380\19=20 x=18+20+23 x=383 nr sunt20 si 383
x+y=403 x=18y +23 19y+23=403 19=403-23 19y=380 y=380\19=20 x=18+20+23 x=383 nr sunt20 si 383