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

Most of the evidence we have about early humans comes from _____.
)What Byzantine city was a wealthy center of trade that maintained the commercial links between Europe and Asia?
Which best describes the way photographs are considered by historians? primary source documents that are useful in the study of history reliable sources for the
best example of hero inner conflict
A lack of Hungarian representatives in the government and ____________________ lead to uprisings against Austrian rule.
)What Byzantine city was a wealthy center of trade that maintained the commercial links between Europe and Asia?
7e−4=31 solve for e.
In a contraction, the apostrophe should always be placed A. just before the last letter. B. immediately after the last letter. C. between the first word and the
it sociable and outgoing is synonyms or antonyms or neither
. A pattern of being late for work or for appointments is usually