Use substitution to solve the linear system of equations.
x=4
-y=1/2x

(4, -2)
(-2, 4)
(4, 2)
(2, -4)

pls a$ap

(4, - 2 )

Step-by-step explanation:

Given the 2 equations

x = 4 → (1)

- y = x → (2)

Substitute x = 4 into (2)

- y = × 4 = 2 ( multiply both sides by - 1 )

y = - 2

Solution = (4, - 2 )