Answer -

Explanation:
Greetings !
Given expression( function )

Thus, plug in -8 in the variable x and solve as follows:-

Multiply the numbers 2.(-8) = -16

Apply the fraction rule



cancle

Factor the number: 12 = 4.3

Factor the number 16 = 4.4

cancel the common factor =4

Thus,

Convert 16 to fraction :
Apply the fraction rule


Multiply the numbers 16.4=64


Apply the fraction rule


Add the numbers -3+64 ==61

Hope it helps !!