Question

Determinati nr x si y stiind ca x/y = 5/3 si x+y= 16

Answer 1

x / y = 5 / 3

x + y = 16

x × 3 = y × 5

x + y = 16 | × 3

3 × x + 3 × y = 48

y × 5 + 3 × y = 48

8 × y = 48

y = 48 : 8

y = 6

x × 3 = 6 × 5

x × 3 = 30

x = 30 : 3

x = 10