aysegul329 aysegul329

05-02-2015
Mathematics

contestada

X+y=-4 -x+2y=13 can someone please help me with this I dont understand this

Respuesta :

05-02-2015

{ x+y=-4
{-x+2y=13 (+)
x+(-x)+y+2y=-4+13
3y=9 /:3
y=3

x+y=4

x+3=4 /-3
x=1

Answer: y=3, x=1

Answer Link

Otras preguntas

Under feudalism, which group was responsible for ruling different regions of a country? peasants knights lords king

one way in which immigrants changed american life is by.... A:Studying American laws B:Learning English C:Refusing to speak there native Languages D:Bringing t

What is a political machine?

Which of the following best describes the lives of the native peoples under the encomienda system? A. They became rich, but could not be government officials be

Which is a correct classification for the triangle? One angle is 31 the other is 59 A. Acute triangle B. Right triangle C. Obtuse triangle D. Equiangular tr

Which of the following makes a true statement? (5 points) The Senate has a Rules Committee that sets limits and rules for both the House and Senate on debating

what percent of 84 is 21

What was the significance of the Lend-Lease Act? -It represented an American violation of existing diplomatic agreements. Americans violated the Munich Pact. -I

tienes un Gato o un perro

What was the purpose of the Spanish missions in New Spain?

Q&A Education