Question

Resuelve:9×-7y=52
5× + 3y=-22

Answer 1

Igualamos el y:

9x - 7y = 52 .....(x3)

5x + 3y = -22 .....(x7)

27x - 21y = 156

35x + 21y = -154

--------------------------

62x = 2

x = 2/62

x = 1/31

9(1/31) - 7y = 52

9/31 - 7y = 52

7y = 9/31 - 52

7y = 1603/31

y = 1603/217

Answer 2

Respuesta:

Explicación paso a paso:

Igualamos el y:

9x - 7y = 52 .....(x3)

5x + 3y = -22 .....(x7)

27x - 21y = 156

35x + 21y = -154

--------------------------

--------------------------

62x = 2

x = 2/62

x = 1/31

9(1/31) - 7y = 52

9/31 - 7y = 52

7y = 9/31 - 52

7y = 1603/31

y = 1603/217