belindaqueen
belindaqueen belindaqueen
  • 22-05-2020
  • Mathematics
contestada

.Solve the system of equations. Use elimination
x + 2y = -3
x - y = -12
a) (-9,3)
b) (-7,5)
c) (9, 6)
d) (3, 15)​

Respuesta :

SvetkaChem
SvetkaChem SvetkaChem
  • 22-05-2020

Answer:

a) (-9,3)

Step-by-step explanation:

   x + 2y = -3

- (x -    y = -12)

x + 2y = -3

- x + y =  12

       3y =  9

          y = 3

x - y = -12

x- 3 = -12

x= - 9

(-9, 3)

Answer Link

Otras preguntas

A red light flashes every 14 minutes. A blue light flashes every 24 minutes. when will the two lights flash together again if they last flashed together at 8 AM
How was Islam able to cross the Sahara Desert in the eighth century?
No one opposed ____ of the Constitution more vehemently than Patrick Henry.
Are squirrel monkeys unicellular or multicellular?
egyptians who could afford it mummified the bodies of the deceased to do what?
To become industrial, a nation must have raw materials, workers, and capital. True or false?
What was a key reason for the post-war cash crunch in America?
What number is greater than six tenths 0.007 0.085 0.62
how long has peter randal been an artist
The period in Japan's history in the late 19th century when imperial rule was restored was known as the __________