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

what was the monroe doctrine?
While pulling a bicycle out of the garage, you must pull it a total of 1.7 m with a force of 27 n. how much work are you doing on the bicycle? a. 25.3 j b. 6.
In one or two paragraphs, discuss what the novel is saying about blame. Who does each of the three narrators blame for the tragedy? How are they helped or hurt
Which of the following topics would be suitable for a short research paper? an in-depth study of Mary Shelley's Frankenstein a comparison of Homer's Iliad and O
Another word for free verse poetry is accidental poetry. true or false.
write a paragraph In which you discuss whetherthese findngs about equaliy in hunter-gathering societies are of any relevance to 21st century society
All vehicles must have two red lights visible from a distance of what
Which zero pair could be added to the function f(x)=x2+12x+6 so that the function can be written in vertex form?
Please help out Write the explicit formula for the geometric sequence. a1 = -5 a2 = 20 a3 = -80 A. an = -5 • (-4)n B. an = -5(-4)n-1 C. an = -4(-5)n-1 D. an
Which describes the protagonist in a story