bekah5332 bekah5332
  • 04-02-2017
  • Mathematics
contestada

I'm lost.. How do you even start it???

Im lost How do you even start it class=

Respuesta :

konrad509
konrad509 konrad509
  • 04-02-2017
[tex]2x+y=4\\ -x+y=1\\\\ 2x+y=4\\ \underline{x-y=-1}\\ 3x=3\\ x=1\\\\ 1-y=-1\\ y=2 [/tex]
Answer Link
wolf1728
wolf1728 wolf1728
  • 04-02-2017
A) 2x + y = 4
B)  -x + y = 1

Multiply B) by 2
B) -2x + 2y = 2  then add to A)
A) 2x + y = 4

3 y = 6
y = 2

B) -x + y = 1
-x +2 =1
x = 1

Answer Link

Otras preguntas

The purpose of DNA replication is to * make changes in base pairs in order for an organism to evolve make an exact copy of a DNA strand for bacterial reproducti
Emperor Justinian decreed that most women had the right to make contracts and wills, the right to own property, and that any assaults on women were punishable
What are biomolecules and why they important
What does interior and exterior?​
Why were the port cities of Brunswick and savanna important in colonial George’s development?
There are 2 questions on this assignment that i really need help with 1: If the total length of all the meteors were distributed equally between each meteor, ho
Help Please I need he answer english​
Find the area of the figure. (Sides meet at right angles.) 3 ft 2 ft 2 ft 4 ft 4 ft 4 ft A ft
The perimeter of a square is 52 meters. What is it area.
7. The instrument that can produce sound through air.A. BungkakaB. GangsaC. TongaliD. Tongatong​