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

12. Calculate. a) - (-/-)²2 c) 49​
What is the volume of a triangle with a radius of 5 and a height of 6
Find k. 10 mi 60⁰ K 30⁰
Chua Chang & Wu Inc. is planning its operations for next year, and the CEO wants you to forecast the firm's additional funds needed (AFN). Data for use in y
Read the following passage from "A Way of Talking." I was so wild with Rose. I was wild. I was determined to blow her up about what she had done, I was determin
Write a complete sentence in the preterite for each of the following subjects. Savannah y Adria Tú You must choose verbs from this list and use them in their co
Un Texto publicitario
The term "pan-resistant" bacteria means: a Resistant to all antibiotics b Does not resist any antibiotics c Resistant to some antibiotics d Can only be trea
what's the area of a trapezium with a height of 6cm and a length of 9cm and 15cm?
Stephanie graduated from college and on her first job earned an annual salary of $25,000.