jonaiahlouisjeune jonaiahlouisjeune
  • 01-02-2021
  • Mathematics
contestada

2х - Зу = 9
5x - Зу = 30

2х Зу 9 5x Зу 30 class=

Respuesta :

beautifulmind2468
beautifulmind2468 beautifulmind2468
  • 01-02-2021

Answer:

(x, y) = (7, 5/3)

Step-by-step explanation:

2x - 3y = 9

5x - 3y = 30

(5x-3y) - (2x-3y) = 30 - 9

5x-3y - 2x +3y = 21

3x = 21

x = 7

So, substituting the value of x into the first equation, we get 2*7 - 3y = 9. Simplifing, we get,

14 - 3y = 9

-3y = -5

y = 5/3

Answer Link

Otras preguntas

If a single banks faces a required reserve ratio of 20 percent, has total reserves of $500,000, and checkable deposit liabilities of $400,000, what is the maxim
What was the cultural explosion for African Americans which saw the creation of jazz music ?
Select all the options with 32,749 written in expanded form
B. f. skinner's views on personality differed greatly from sigmund freud in that he was not concerned with __________ or __________. a. self-efficacy . . . resp
Write a letter requesting aid from the president and a particular New Deal program. Explain what you like about an existing program, the overall New Deal, or th
The base of the sailboat is 9ft and the height is 15 what is the area??
What are the most populated countries in the world
The energy for _____ transport comes from the gradient itself
How do humid temperatures promote population growth
Pasagot po16.It is where sound travels fastest17.it is the sound that is reflected or returned18.it is the unit of measurement used for the loudness and softnes