Question

b) 2x + 5y = 8 2x+ 3y = 4 Hallar: x2 + y2

Answer 1

Respuesta:

2x + 2y = -2 + 4 = 2

Explicación paso a paso:

2x + 5y = 8     2x + 3y = 4

5y - 3y = 4

2y = 4  y = 2

x = -1