Question

4x -3y =-2
2× +2y =-8
ppr metodo de igualacion porfa​

Answer 1

Respuesta:

2y + 4x = 8

- 4x - 4x

________________

2y = 8 - 4x

(2y) / 2 = (8 - 4x) / 2 = (8) / 2 - (4x) / 2

y = 4 - 2x

y = 4 - 2x ; x = -2, 1, 3

==> x = -2

y = 4 - 2·(-2)

= 4 - (-4)

= 4 + 4

y = 8

==> x = 1

y = 4 - 2·(1)

= 4 - 2

y = 2

==> x = 3

y = 4 - 2·(3)

= 4 - 6

y = -2