Răspuns :
a+b=53
a:b=9 rest 3
____________
a=?, b=?
a+b=53
a:b=9 rest 3=>a=9b+3=>
=>53-3=50
=50:10=5(b)
=53-5=48(a)
Verificare
48:5=9 rest 3 (corect)
Coroana?
a+b=53
a:b=9 rest 3
____________
a=?, b=?
a+b=53
a:b=9 rest 3=>a=9b+3=>
=>53-3=50
=50:10=5(b)
=53-5=48(a)
Verificare
48:5=9 rest 3 (corect)
Coroana?