HyperXwastaken
HyperXwastaken HyperXwastaken
  • 13-05-2021
  • Mathematics
contestada

Use elimination to solve the system below:


4x – 3y = 22

2x – y = 10

Respuesta :

Awesomenooby
Awesomenooby Awesomenooby
  • 13-05-2021

Answer:

Y = -2,  X = 4

Step-by-step explanation:

When you first use the elimination method, you would multiply 2x-y = 10 by -2 so that you could get the 4x to be eliminated.

4x-3y = 22

(2x-y = 10)-2 = -4x + 2y = -20

When you add those 2 together you are left with -y = 2, which you divide by negative to get y = -2. Then you substitute -2 for y to solve for x. I substituted the bottom equation

2x - (-2) = 10

2x +2 = 10

2x = 8

Divide both sides by 2 to get x = 4.

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