dreamxette dreamxette

08-02-2017
Mathematics

contestada

x + 2y = -9 , 2x - y = -13 , what's x and what's y?

Respuesta :

baabaagreysheep baabaagreysheep

08-02-2017

x + 2y = -9
2x - y = -13

2x + 4y = -18
2x - y = -13
(subtract)
5y = -5
÷ 5
y = -1

x + (2 × -1) = -9
x + -2 = -9
x - 2 = -9
+ 2
x = -7

I hope this helps!

Answer Link

Otras preguntas

Plz helpAs you can see from the enclosed resume, I have sold a variety of products through my extracurricular activities and have worked in many banking environ

List four topics which astronauts learn about during their training.

What is the area of this polygon? Units^2

The entry to close the appropriate insurance account at the end of the accounting period is to debit: A) Income Summary; credit Prepaid Insurance. B) Prepaid

Which answer best explains how the Articles of Confederation addressed the question of creating a court system?

Who are at a higher risk when they drive A.) new inexperienced drivers B.) older drivers C.) neither

A symbol or mark may act as an individual's signature as per the Statute of Frauds and the UCC's requirement that a written contract must be signed by the party

The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 minutes. A. What is the probabilit

Given: b = 600, B = 11°, C = 75° in triangle ABC; find C. (Round the answer to the nearest whole number.) A. 1,185B. 3,037C. 3,137

“Hi, Mr. Browning, I’m Jonathan. My family just moved in next door. I accidentally kicked my soccer ball into your back yard and I was wondering if I could retr