Question

Suma a doua numere este 16 iar diferenta lor 6.Care sunt numerele?

Answer 1

a+b=16
a-b=6
a=6+b
6+b+b=16
2b=16-6
2b=10
b=5
a=5+6=11

Answer 2

$a + b = 16 \\ \\ a - b = 6 = > a = b + 6 \\ \\ = = = = = = = = = = = = = \\ \\ b + 6 + b = 16 \\ \\ 2 \times b + 6 = 16 \\ \\ 2 \times b = 16 - 6 \\ \\ 2 \times b = 10 \\ \\ b = 10 \div 2 \\ \\ b = 5 \\ \\ a = 5 + 6 \\ \\ a = 11$