kinghanan kinghanan
  • 19-10-2020
  • Mathematics
contestada

Please help???
-x + y=1
2x+y=-2

Respuesta :

KGYT
KGYT KGYT
  • 19-10-2020

Answer:

(x, y) = (-1, 0)

Step-by-step explanation:

Here:

1. -x + y = 1

2. 2x + y = -2

so just temporarily....

multiply #1 by 2

and

multiply #2 by 2

1. -2x + 2y = 2

2. 4x + 2y = -4            then subtract top from bottom.

   -6x + 0  = 6

          -6x = 6

             x  = -1

Then implement x = -1 into the original state of #2

2. 2(-1) + y = -2

      -2 + y = -2

             y = -2 + 2

             y = 0

(x, y) = (-1, 0)

WooHoo! pls brainliest ;) !

Answer Link

Otras preguntas

Please Please HElp!!! Aaron is making a candle by pouring melted wax into a mold in the shape of a cone. The radius of the base of the cone is 5 cm and the heig
What is the circumference of a circle with an area of 50.24cm^2 Use 3.14 for pi
PLEASE HELP ASAP 20 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
My mother she is nice correct or incorrect
Why is water an excellent material to use in a calorimeter
PLZ HELP ASAP! WILL MARK BRAINLIEST!! Find the sum. Write your answer in simplest form. 5/7 + 1/7
Which of these lines from Shakespeare’s Twelfth Night reveals that Viola would use a different method to woo the person she loved than that used by Orsino? VIOL
How many g3p’s are needed to generate a molecule of glucose?
A leaky faucet drips 1 fluid ounce every 30 seconds. How many gallons of water will leak from this faucet in 1 day? Round your answer to the nearest gallon
4/10+6/100+3/10+81/100​