Question

Use the elimination method to solve the system of equations. Choose the correct ordered pair.

-x + 5y = -4
4x + 3y = 16

A. (19, 3)
B. (14, 2)
C. (4, 0)
D. (9, 1)

Answer 1

By elimination method:
-x + 5y = -4 -----equation 1
4x + 3y = 16 -----equation 2

multiply equation 1 with 4
4(-x + 5y = -4)
-4x + 20y = -16 ----equation 3

add equations 2 and 3
4x + 3y = 16
-4x + 20y = -16
0 + 23y = 0
y = 0

substitute the value of y to equation 1
-x + 5y = -4
-x + 5(0) = -4
-x = -4
x = 4

Answer 2

Thanks ^^

Answer 3

yw :)