alexiakou alexiakou
  • 01-04-2020
  • Mathematics
contestada

2x + 4y = 1
3x - 5y = 7
solve the simultaneous equations x

Respuesta :

dannielle
dannielle dannielle
  • 01-04-2020

Answer:

(x,y)=(3/2, -1/2)

Step-by-step explanation:

2x+4y=1  /*3

3x-5y=7  /*(-2)

6x+12y=3

-6x+10y=-14

...........................

/      22y=-11

      y= -11/22

     y= -1/2

2x+4*(-1/2)=1

2x-2=1

+2     +2

2x=3

x=3/2

so the solutionis (x,y)=(3/2, -1/2)

Answer Link

Otras preguntas

From midnight to 7:00 am, the temperature dropped 1.35 degrees Celsius each hour. If the temperature at midnight was 10 degrees Celsius, what was the temperatu
Which would be best categorized as heat transfer by conduction? A) Wearing a white shirt to stay cool on a summer day. B) Cooling a burn on your hand by runnin
(1 point) find three positive real numbers whose sum is 37 and whose product is a maximum.
read the last line of the story: Gazing up into the darkness i saw myself as a creature driven and derided by vanity; and my eyes burned with anguish and anger
What is ironic and even funny about winston's thoughts when julia hands him a note?
Why is the precambrian not divided into many time subdivisions whereas the paleozoic, mesozoic and cenozoic are?
eight less than 7times a number is -29
Importance of time zones being established
Sensations of touch are picked up by nerves in the skin's _____. - dermis - epidermis - fatty layer - renal layer
what is the antonym of catacomb