mdbk51 mdbk51
  • 24-03-2021
  • Mathematics
contestada

If 2x - 3y = 24 and 3x + 4y = 2, what is the value of x - y ?

Respuesta :

hell034
hell034 hell034
  • 24-03-2021

Answer:

10

Step-by-step explanation:

2x - 3y = 24 ------ (1)

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

(1) × 4,

8x - 12y = 96 ------ (3)

(2) × 3,

9x + 12y = 6 ------ (4)

(3) + (4)

17x = 96 + 6

= 102

x = 102 ÷ 17

= 6

Sub x = 6 into (2),

3(6) + 4y = 2

18 + 4y = 2

4y = 2 - 18

= -16

y = -16 ÷ 4

= -4

Therefore,

x - y = 6 - (-4)

= 6 + 4

= 10

i hope this helps you !!

Answer Link

Otras preguntas

Difference between response and adaption
How can finding out that a hypothesis is not true be useful for a scientist
Each paper clip is 7\8 of an inch long and costs $0.03. Exactly enough paper clips are laid end to end to have a total length of 56 inches. What is the total co
How can finding out that a hypothesis is not true be useful for a scientist
What message did the Boston tea party send to the british government?
Which statement is true regarding flexibility? a. joint's range of motion cannot be maintained with age. b. A joint's range of motion will be lost if the joint
What four tools do mapmaker a use for helping readers interpret info on maps
A reward that follows an action is called a. human relations b. self talk c. risk-taking d. reinforcements
How can finding out that a hypothesis is not true be useful for a scientist
Which of the following statements about sexual attraction and intimacy in the Which of the following statements about sexual attraction and intimacy in the work