Question

Sistema de ecuaciones lineales
1) 2× + 3y=-1
2) 3× + 4y=0

Answer 1

Método: Sustitución

{2x + 3y = -1

{3x + 4y = 0

{x = -1/2 - 3/2 × y

{3x + 4y = 0

Para y...

3(-1/2 - 3/2 × y) + 4y = 0

-3/2 - 9/2 × y + 4y = 0

-3/2 - 1/2 × y = 0

-3 - y = 0

-y = 3

y = -3

Para x...

x = -1/2 - 3/2 × (-3)

x = -1/2 + 3/2 × 3

x = -1/2 + 9/2

x = 4

(x, y) = (4, -3)

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