tannn0110 tannn0110
  • 07-09-2021
  • Mathematics
contestada

2x-3y=-1
3x-4y=-1
giải hpt

Respuesta :

anasweeney43 anasweeney43
  • 07-09-2021

Answer:

x = 1

Y = 1

Step-by-step explanation:

A. 3(2x-3y= - 1)

6x-9y=- 3

B. -2(3x-4y= - 1)

- 6x+8y=2

Add both equations:

(6x-9y= - 3) + (- 6x+8y=2)

-y= - 1

3x - 4(1) = - 1

3x-4= - 1

3x = 4 - 1

= 3/3 = 1

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