Question

a + b = 20 b-a = 1 Aflați numerele!​

Answer 1

Răspuns:

b-a=1==>b=a+1

2a+1=20==>2a=19==>a=

$\frac{19}{2}$

b=a+1=

$\frac{19}{2} + 1 = \frac{21}{2}$