courtneygaffney4755
courtneygaffney4755 courtneygaffney4755
  • 04-02-2019
  • Mathematics
contestada

can someone explain the elimination method to me for this problem?

can someone explain the elimination method to me for this problem class=

Respuesta :

Аноним Аноним
  • 04-02-2019

Answer:

x = -8, y = 4.

Step-by-step explanation:

5x + 3y = -28

5x + 10y = 0

If we subtract these 2 equations we eliminate  x:-

0 + 3y - 10y = -28

-7y = -28

y = -28/-7 = 4.

Now substitute y = 4 in the first equation:

5x + 3(4) = -28

5x + 12 = -28

5x = -40

x = -8.

Answer Link

Otras preguntas

Ethan watched the news one evening. During the weather section
where does the line cross in the equation y=2x=12
Need help???????????????!!!!!!!!!!!!!!!
PLEASE HELP I'LL GIVE 30 POINTS
How do entrepreneurs help Florida's economy? Construct hospitals and schools Invent new things and hire people Paint murals and spend money Teach and provid
What is the plural form of me? I we me us
Which of the following is not a benefit of managerial accounting? A. Aids in business decision making B. Provides financial information about a company to sha
PLEASE HELP WILL GIVE BRAINLIEST AND 40 POINTS
hOW MANY nibbles ARE IN ONE kilobyte?
Chromosomes line up in the center of the cell during which phase?