F (x) = 3x + 2 and g (x) = 2x - 1. Find (g- f(x) I don't understand and its all so confusing, my teacher I like him a lot but he is too smart and sometimes he can forget that and speak so fast than ask you "got all that copied down"? I'm really lost on this please help

I just need the explanation part, and then anything else please! thanks :)

(f-g)(x) = x-3

Step-by-step explanation:

(f-g)(x) means f(x) - g(x)

this means (3x-2) - (2x+1)

subtract like terms 3x-2x = x

-2 - 1 = -3

put it together x-3

(f-g)(x) = x-3

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)

need more info

step-by-step explanation: