lillypetal318 lillypetal318
  • 25-09-2017
  • Mathematics
contestada

Solve the system by substitution . 2x+y=-11 3x-4y=11
(3,5)
(-5,-3)
(-3,-5)
(5,3)

Respuesta :

texaschic101
texaschic101 texaschic101
  • 25-09-2017
2x + y = -11
y = -2x - 11

3x - 4y = 11
3x - 4(-2x - 11) = 11
3x + 8x + 44 = 11
11x = 11 - 44
11x = - 33
x = -33/11
x = -3

y = -2x - 11
y = -2(-3) - 11
y = 6 - 11
y = - 5

solution is (-3,-5) <==
Answer Link

Otras preguntas

What is 3|(18-3)+4((5-(-7)|
the events describe the formation of an underwater sedimentary rock. place the events in chronological order.
Domain definition in math
A DJ is preparing a playlist of 23 songs. How many different ways can the DJ arrange the first four songs on the​ playlist?
Which career professional would most likely interact with a healthy pregnant woman needing medical services? a conservationist a sonographer an epidemiologist a
Why do companies wish to have financial slack?
Find the smallest numbeve which when dividedby25,45,63 and 84 leaves the remainder7 in each case.​
What was the main problem for the school of Structuralism? A. Too much data B. WWI began C. Most left for Functionalism​
AssessmentYou should now be familiar with the history and beliefs of Hinduism! It is now time for you to show off your creative side. Your assignment is to crea
if f(8)=2, find f^-1(2)