angelliu11
angelliu11 angelliu11
  • 10-08-2017
  • Mathematics
contestada

2x + 7y = 8
3x + 2y = -5
Solve algebraically.

Respuesta :

irspow
irspow irspow
  • 10-08-2017
3(2x+7y=8)-2(3x+2y=-5)

6x+21y-6x-4y=24+10

17y=34

y=2, which makes 2x+7y=8 become

2x+7(2)=8

2x+14=8

2x=-6

x=-3

So the solution to the system of equations is the point (-3, 2)

Answer Link

Otras preguntas

What point of view is used in "Was It a Dream?" How would a different point of view change the story? In one to two paragraphs, explain your answer. How does th
Select the reasons why proofreading is important. (Multiple Choice) (pts : 10) 1. correct mistakes 2. avoid confusion 3. not important 4. better grades 5.
NEED FIVE QUESTIONS ANSWERED!!! take your time~Question 1 Excel is a tool used to A create a spreadsheet B design a brochure C make a presentation D
Listening is a(n) ___ process physical mental emotional all of the above
Darius and Barb are playing a video game in which the higher score wins the game. Their scores are shown below. Darius’s scores: 96, 54, 120, 87, 123 Barb’s s
What is the slope of the line shown?? Please help i been stuck on this all day yesterday and now today..
how did the availability of metal deposits and the growth of metal work affect the development of the civilizations
Help me! I'm not good at maths!!![tex] {(( - 1)}^{5} )^{5} [/tex]what is this answer. pls show the working
What were the effects of kristallnacht? Why is it an important event?
just 5&4 please, will give brainliest and many pts