Question

Question 1 (5 points) Solve the following system of equations using the elimination method. × - y= 11 2x y= 19 • A) (-9,6) • B) (10,-1) • c) (-3,9) O D) (-10,2)

Answer 1

B (10, -1)

Explanation:

× - y= 11

2x + y= 19 ( I have assumed this is a +).

Adding the 2 equations eliminates y:

3x + 0 = 30

x = 10.

Now, plug x = 10 in the first equation:

10 - y = 11

-y = 11 - 10

-y = 1

y = -1