londielon
londielon londielon
  • 02-04-2020
  • Mathematics
contestada

- 8x-10y=20
-8x - 6y=-4

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 02-04-2020

Answer:

x=5 y =-6

Step-by-step explanation:

- 8x-10y=20

-8x - 6y=-4

Multiply the first equation by -1

8x +10y=-20

Add this to the second equation

8x +10y=-20

-8x - 6y=-4

------------------

      4y = -24

Divide each side by 4

4y/4 = -24/4

y = -6

Now we need to solve for x

8x +10(-6) = -20

8x -60 = -20

Add 60 to each side

8x -60+60 = -20+60

8x = 40

Divide each side by 8

8x/8 = 40/8

x =5

Answer Link

Otras preguntas

30 POINTS!! DO NOT COPY & PASTE OR I WILL REPORT! WILL GIVE BRAINLIEST TO THE BEST ANSWER!!! 1) Greek and Roman legacies to the modern world include contrib
What is the most common drive letter where window stores most data and programs. 1,a 2,b 3,c 4,e
How many miles did I run
What is the purpose of imagery in poetry?
Which savings institution has the benefit of being operated for depositors and providing profits in dividends? A. Credit Union B. Savings and loan C. Commercia
If the pressure in the habitat is increased, then the anglerfish will have a (higher/lower) health rating.
what happens to the kinetic energy of a meteoroid as it travels farther through the atmosphere to earths surface
How can a person attribute to his / her failure to adhere to a positive habit ?
Jodi walks 35 minutes a day. If she walks for 240 days,how many minutes altogether does Jodi walk?
I need help writting 3-5 paragraphs on why i should b a project manager.