Answer 1

4 + 5 (p - 1) = 34

5 (p - 1) = 34 - 4 = 30 (Transposing 4 to R.H.S.)

Dividing both sides by 5

`p - 1 = 30/5 = 6`

p = 6 + 1 = 7 (Transposing −1 to R.H.S.)