Answer:
One solution: (6, -1)
Step-by-step explanation:
I have attached the work to your problem below.
Please see the attachment.
I hope this helps.
A
f(x) = 2x
f(-4) = 2(-4) = -8
1/1 (a whole)
1.00/1
8/8
Multiply
28
4x7=28
14x2=28