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

Find the roots of f(x)=dx^2+ex+f by completing the square.
Members of the House of Representatives are elected for an unlimited number of six-year terms. an unlimited number of two-year terms. an unlimited number of fou
The _______ is responsible for absorbing the most UV radiation. a. troposphere b. stratosphere c. mesosphere d. thermosphere
Which description of Alexander Hamilton is correct? A. the commander of British troops in the South who lost the Battle of Yorktown B. a young officer on Washin
How is Renaissance movement characterized, in thought, writing, and art, as the evolutionary bridge between the Middle Ages and the Renaissance period (1300-160
what is the lowest common denominator of 20 and 24
how do you convert gallons to liters? Explain
How many protons, electrons, and neutrons does an atom of iridium (Ir) have
three times the sum of a number and four is equal to five times the number, decreased by two. If x represents the number, which equation is a correct translatio
is this sentence "Mrs. Ames is seventy years old, yet she jogs every day." a. coordination b. subordination c. parallelism