Question

afla doua numere stiind ca suma lor este 55, iar diferenta este 15.

Answer 1

a+b=55=>a=55-b
a-b=15=>55-b-b=15=>
55-2b=15=>2b=55-15=>
2b=40=>b=40:2=>b=20
a=55-b=>a=55-20=>
a=35
Raspuns:a=35 b=20
Verificare: a+b=55
35+20=55
a-b=15
35-20=15