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

how do u write the fraction 5/8 as a decimal
Why should you not speak in class while other people are working? (4 sentences + OWN WORDS)
List these from least to greatest (Don’t forget they’re all negatives) -94% -8/9 -0.925 -9/10
Which of the following statements must be true about this diagram? Check all that apply.
PLEASE HELP ME ASAP!!! will give brainlest!
Multiply and Divide Integers Practice Worksheet -9(-8)=? It’s both Negative so the answer would be Negative.
PLZZZZZZZ HELLPPPP MEEEE I HAVE A HEADACHE WITH THIS Find the measure of angle b.
What is the definition of supercalifragilisticexpialidocious.
The capacity of the container is 15 870 ml Determine how many cups it can fill
write a letter to your mother describing how good she is for you. ​