Question

Daca x + 2y = -2
4x - y = 5
Aflati x si y. pls ajutor:(

Answer 1

4x-y=5

Rezulta ca

Y=4x-5

Inlocuim in prima ecuatie data de tine

X+2(4x-5)=-2

X+8x-10=-2

9x=-2+10

9x=8

$x = \frac{8}{9}$

$y = \frac{8}{9} \times 4 - 5 \\ y = \frac{32}{9} - \frac{45}{9} \\ y = \frac{ - 13}{9}$

Answer 2

Sper ca te am ajutat ;) coronița?