kcaesar2323 kcaesar2323
  • 03-11-2021
  • Mathematics
contestada

solve the following system of equation 5x + 4y = -4 and 3x + 4y =12

Respuesta :

ridmitharuka
ridmitharuka ridmitharuka
  • 03-11-2021

Answer:

x=-8  y=9

Step-by-step explanation:

5x + 4y = -4----(1)

3x + 4y =12-----(2)

(2)-(1)

(3x+4y)-(5x+4y)=12-(-4)

3x+4y-5x-4y=12+4

-2x=16

x=16/-2

x=-8

substitute in (1)

5(-8)+4y=-4

-40+4y=-4

4y=-4+40

4y=36

y=36/4

y=9

Answer Link

Otras preguntas

How does voting help in a social news site?
Which particle has the most energy ice water steam or no difference
The leaking blood vessels of uncontrolled diabetes can lead to damage of the _______.
Which is an example of a Foley effect? recording the sound of an aircraft taking off onboard a naval warship wailing into the microphone to voice a character in
President Carter called this issue "the moral equivalent of war." To what issue was Carter referring? A) war on poverty B) women's issues C) the energy cris
Teens often begin smoking because of peer pressure. True or False
SOMEONE PLEASE HELP ME!!!!! I NEED HELP ON CASE #3
What is the area of the parallelogram?
Has a nucleus and a cell wall that contains chitin
If its 8am in eastern time zone, what time is it in the pacific time zone Please let me know thx And also Not sure which subject dis is so yea