How would you solve this equation? How would you solve this balance problem? How are they similar??? 16 = 4 + 2x

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

If (x) = 3х - 2 and g(x) = 2х+ 1, find (f- g)(x). оа. х- з ов. 3-х ос. 5x - 1 od. 5x - з

What is the distance between (3,k+1) and (2k, k-1)