Seudónimo Seudónimo

25-04-2022
Mathematics

contestada

Help pls!

[tex]\begin{bmatrix}5x+3y=7\\ 3x-5y=-23\end{bmatrix}[/tex]

Respuesta :

sujalpun324 sujalpun324

25-04-2022

Answer:

Soln:

5x+3y=7

(5x+3y)×5=7×5

25x+15y=35,eq.1

3x-5y=(-23)

(3x-5y)×3=-23×3

9x-15y=(-69)

Adding both equations,

25x+15y=35

9x-15y=(-69)

34x=(-34)

x=(-1)

5x+3y=7

(-5)+3y=7

3y=12

y=4

Answer Link

Otras preguntas

!!Hurry please!! Which statement best explains why wine production dominates in some areas of the world and not in others? - O Wine consumption is not encourage

A man pulled a food cart 4.5 m to the right for 15 seconds. What is the average speed of the food cart to the nearest tenth of a m/s?

Nick can type 30 words a minute. How many words can be typed in 9.5 minutes ?

2. In your own words, summarize this law. Document c The sedition act of 1918 This is an excerpt from the Sedition Act, signed into law by President Woodrow W

Carla have 42 CDS until she wants see more in a contest writing expression that shows how many cd carla is now

Average Daily expenditure

Paula is buying a watermelon that cost $0.50 per pound the watermelon weighs 5 lb and 3/5 pounds what is the cost of the watermelon in dollars.

please help on this question it’s the only one i can’t do !!

Please help if you can thx :)

Sabrina bought a new washing machine. She put $50 down and pays $50 per month for the next 10 months to be able to make the purchase. Which type of credit did s