Question

Please help
Which ordered pair is the solution to the system of equations?
2x - y = -5
x + 3y = 22

Answer 1

A.
(1, 7)

B.
(4, 9)

C.
(7, 19)

D.
(8, 21)

Answer 2

a

Answer 3

2x - y = -5
x + 3y = 22
I'm going to eliminate y so I can solve for x. Multiply the top equation by 3.
6x - 3y = -15
x + 3y = 22
Add together.
7x + 0 = 7
7x = 7
x = 1 <--- Plug x into one of the original equations.
2x - y = -5
2(1) - y = -5
2 - y = -5
-y = -7
y = 7
The ordered pair that is a solution to the system of equations is: (1, 7) :D

Answer 4

:)

Answer 5

can you help with one more?

Answer 6

Yes. (: