Question

Resuelve:
2x+y = 2
3x+2y = 4

Answer 1

$2x + y = 2 - - - 3x + 2y = 4 \\ y = 2 - 2x \\ 3x + 2(2x - 2) = 4 \\ 3x + 4x - 4 = 4 \\ 7x = 4 + 4 \\ x = \frac{8}{7} \\ y = 2 - 2 \times \frac{8}{7} = 2 - \frac{16}{7} \\ y = \frac{14 - 16}{7} = \frac{ - 2}{7}$