Question

Find values for p and q so that x = 4 is the only solution to the equation.

px - 8 = 5x + 9

Answer 1

Explanation:

Given the equation px - 8 = 5x + 9, we can only find the value of p when x = 4.

To get p, we will substitute x = 4 into the expression as shown:

p(4)-8 = 5(4)+9

4p - 8 = 20+9

4p - 8 = 29

4p = 29+8

4p = 37

p = 37/4

p = 9 1/4

Hence the value of p so that x = 4 is the only solution is 9 1/4