kamora97 kamora97
  • 02-04-2021
  • Mathematics
contestada

What is the solution to the following system of equations?

{y=−3x−7
{x+2y=11
A. (1,9)
B. ( 8,-5)
C. (-5,8)
D. (9,1)

Respuesta :

meowmeow223334
meowmeow223334 meowmeow223334
  • 02-04-2021
You can use substitution
Plug in -3x - 7 for y in second equation
x + 2(-3x - 7) = 11
x - 6x - 14 = 11
-5x = 25, x = -5
Plug plug -5 for x in first equation
Y = -3(-5) - 7
Y = 15-7, y = 8

Solution: C. (-5,8)
Answer Link

Otras preguntas

the building blocks of proteins are known as
Why were scenes from celebrations and contests painted on palace walls? a. so visitors could understand the social customs of the wealthy b. To praise the royal
What effect does observing a substance's physical properties have on the substance?
The area of a sea horse is 108 cm. Every day it grows by 2%. What will be the sea horse’s area after 2 days?
Who is W. E. B. Du Bois?
example of A function whose domain is [2, infinity]
Which of the following was a direct response to the king’s continued accumulation of soldiers? a. The National Guard c. The National Declaration b. The National
how do images or word pictures help you experience a scene in the excerpt "The Day of Destiny"?
what issue created tension between fdr and southern democrats?
Who is W. E. B. Du Bois?