Question

x+2*y=24 si x+y=18 dau coroana

Answer 1

Sper ca te-am ajutat ❤

Answer 2

x + 2 y = 24    si   x + y = 18 ;   Cerinta:  Sa se afle x si y .

( x + y ) + y = 24

18 + y = 24

y = 24 - 18

y = 6

x = 18 - 6

x = 12

Verific:   12 + 6 = 18;   12 + 2 × 6 = 12 + 12 = 24