shippy2003 shippy2003

01-12-2020
Mathematics

contestada

10x + 4y = 20
13x - 4y = -66
If x = -2, what is the value of y?

Respuesta :

jovemarlie07 jovemarlie07

01-12-2020

Answer:

y = 10

Step-by-step explanation:

If x = -2

10x + 4y = 20

10(-2) + 4y=20

-20+4y=20

4y= 20+20

4y=40

y=10

If x=2 and y=10

13x - 4y = -66

13(-2) - 4(10) =-66

-26 -(-40) = 66 so it all checks out!!

Answer Link

Otras preguntas

Richie is visiting his animal friends in his neighborhood. The Corgi Dogs don’t live next door to Richie’s family. The Calamity Kittens and the Siamese Cat fami

what is the length between a 1 1/4 inch button and a 3/8 inch button HELPPP

Which layer of the alimentary canal is exposed to the food we eat and ingest?

Today, the average adult sleeps __________ than the average adult in the 1800s.

I don't understand the question.can you translate amd give me few examples?

If a thief jumps from the tried floor of a house while holding a box on

1.22 x 10^6 over 1.5 x 10^7

Lisa ordered 3 balls of yarn, for a total of 717.3 meters of yarn. How many meters of yarn did each ballon contain?

Research shows that when people are presented an irrelevant distractor stimulus at the end of a word list they must recall, it impairs their ability to recall t

When kyle's mother is nearby, he explores a new environment and plays with the new toys present. mary ainsworth would say he is?