25 pts + brainliest for the first correct answer. find the value of x. i just need these answered quickly if possible : )

29) x = 17

30) x =14

31) x = 23

32) x = 44

Step-by-step explanation:

29)

6x - 17 = 85

6x = 102

x = 17

30)

4x + 21 + 103 = 180

4x + 124 = 180

4x = 56

x = 14

31)

2x + 23 = 4x - 23

-2x = - 46

 x = 23

32)

4x - 42 = 134

4x = 176

x =  44

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3