bizarro600 bizarro600
  • 17-05-2017
  • Mathematics
contestada

Solve the system of linear equations below. 4x - 3y = 17 5x + 4y = 60

Respuesta :

Аноним Аноним
  • 17-05-2017
4x-3y=17......(1)
5x+4y=60......(2)

Multiply equation (1) by 4 and equation (2) by 3:-

16x - 12y = 68
15x + 12y = 180

Adding these 2 equations:_

31x = 248
x = 248/31 = 8

Now substitute x = 8 in equation (1):-

4(8) - 3y = 17
32-3y = 17
-3y = -15
y = -15/-3 = 5

So solution is x=8,y=5
Answer Link

Otras preguntas

Why do the Congo’s celebrate New Year’s Day??
Why is obeying the law an obligation of citizenship? A. Obeying the law ensures that police officers are happy. B. Obeying the law ensures that businesses m
who fought in the peloponnesian wars
Item 1 How is a worker most likely to improve their ability to earn a higher income? by frequently changing jobs or careers by focusing solely on work instead o
An amphibian heart is shown in the diagram. Which statement best describes the three chambers of the heart? Y receives oxygen-rich blood, X receives carbon diox
Complétez la phrase en choisissant la bonne forme du verbe. David et Daniel des calculatrices. ai avons ont as
Find the probability of spinning a 2 and rolling a 3. A) 1 48 B) 1 6 D) 1 8 PLEASE HELP ME I NEED THIS RNNNN
Give the coordinator of the point where each line crosses the y-axis y=1/2xy=2-x​
find the valu of x.​
What two nations emerged after World War II as the strongest and most power nations in the history of the world?