barnhart115 barnhart115
  • 04-06-2019
  • Mathematics
contestada

What is the solution to the system of equations? Use the linear combination method.
{2x−3y=9
{3x+5y=4

Respuesta :

nagichan
nagichan nagichan
  • 04-06-2019
1. {2x−3y=9
{3x+5y=4

2. {(2x−3y=9)×5
{(3x+5y=4)x3

3. {10x-15y=45
{9x+15y=12

4. (10x-15y=45) + (9x+15y=12)= (19x=57)

5. (19x=57)÷19

6. x=3

7. 2(3)-3y=9

8. 6-3y=9

9. -3y=9-6

10. (-3y=3)÷(-3)

11. y=-1

Answer: x=3 and y=-1
Answer Link

Otras preguntas

Using the following​ diagram, solve for x. Show work
Select the verb that makes an incorrect shift in tense. The class sat in a circle and discussed the reading. Susan says she thought the main character was angry
Alternative workplaces are intended to a. limit the flexibility employees have in scheduling work. b. accommodate a narrower range of the potential workforce. c
Compare the volumes of the right prism and the oblique prism. Explain. Look at the picture to answer. Also this is worth 100 points(you get 50, and more if your
what is a complete democracy called in Nepal? why os it called so​
the startup routine runs,when machine boots up is known as​
Which sentence best expresses a central idea of the article?A time of discovery and rediscovery
Which word phrase represents the numerical expression below? * 4+(27-10)
If r // s and m∠6=56°, what is m∠2?28°34°56°124°
105 was divided by some number, then added to 12. next, the sum was multiplied by 4, which gave a product of 20. find the number. please show work and answer