MatthewMorgan182 MatthewMorgan182
  • 11-09-2015
  • Mathematics
contestada

x+y=12
x-y=2

Solve by elimination

Respuesta :

naǫ
naǫ naǫ
  • 11-09-2015
[tex]x+y=12 \\ \underline{x-y=2} \\ x+x=12+2 \\ 2x=14 \\ x=\frac{14}{2} \\ x=7 \\ \\ x+y=12 \\ 7+y=12 \\ y=12-7 \\ y=5 \\ \\ \boxed{(x,y)=(7,5)}[/tex]
Answer Link

Otras preguntas

Easy multiple choice chemistry question
How long is the brace that connects points B and D?
Athens and Sparta were both countries. city-states. monarchies. empires.
You must be prepared to stop within _____ feet of an intersection. -50 -100 -150 -200
what controversial topics can i do that are easy and can be done fast that easy ​
Find the product. 3y 2 z(2y 2 z + 4yz - y + z) A 4y 6z 2 + 13y 3z 12 - 3y 2z 2 - 3yz B 6y 4z 2 + 12y 3z 2 - 3y 3z + 3y 2z 2 C 6y 2z 4 - 12y 2z 3 + 3yz 3 - 3y 2
A $3,000 loan is taken out for 9% interest for 6 months. What is the amount of interest charged?
Help, Help, Help me guys, please.
Captain Jessica has a ship, the H.M.S Crimson Lynx. The ship is two furlongs from the dread pirate Ishaan and his merciless band of thieves. If her ship hasn't
Can you please help on 5, 6,7,8,9 and explain to me this will be 50 points