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

When a recessive trait is on the X chromosome: Answer males will never express it females will always express it males can express it more often than females wi
What is greater 8/9 or 11/12
how many significant digits are in 80,000
is 14.5% equivalent to the decimal 14.5
write 80 as a prime factor?
A cell phone plan uses a fixed charge of $20 per month plus 10 cents for each minute used to calculate the total bill. The total bill, t, can be expressed in te
the Crimean war was the result of a struggle between ... and the ... ?
In snapdragons, there is one allele that produces red flowers and another allele that produces white flowers. Neither allele is dominant and heterozygous indivi
A toddler takes off running down the sidewalk at 270 ft/min. One minute later, a worried mother runs after the child at 580 ft/min. After how many minutes will
I need an example of a ratio being a rate