hunterbeard hunterbeard

16-12-2019
Mathematics

contestada

Use the elimination method to solve the system of equations. Choose the
correct ordered pair.
5x - 2y = 9
3x + 4y = -5

Respuesta :

Yang100 Yang100

18-12-2019

Answer:

x=1,y=-2. (1, -2).

Step-by-step explanation:

5x-2y=9

3x+4y=-5

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

2(5x-2y)=2(9)

3x+4y=-5

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

10x-4y=18

3x+4y=-5

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

13x=13

x=13/13

x=1

5(1)-2y=9

5-2y=9

2y=5-9

2y=-4

y=-4/2

y=-2

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