Question

Método de igualación: 3x + 2y = 8 2x – 9 = -5y

Answer 1

Respuesta:

x = 2

y = 1

Explicación paso a paso:

3x + 2y = 8

2x – 9 = -5y

2y = 8 - 3x

y = (8 - 3x) / 2

y = 4 - 3/2x

2x – 9 = -5y

-5y = 2x – 9

y = (2x – 9)/-5

4 - 3/2x = (2x – 9)/-5

(-5)(4 - 3/2x) = 2x - 9

-20 + 15/2x = 2x - 9

15/2x - 2x = -9 + 20

11/2x = 11

11x = 22

x = 22/11

x = 2

y = 4 - 3/2x

y = 4 - 3/2(2)

y = 4 - 3

y = 1