Question

Which of the following is the solution to the equation 25(z-2 )= 125?

A. z= 5.5
B. z = 3.5
D. z = -2.5
E. z = -0.5

Answer 1

The answer is z = 7.

Explanation:

1) Divide both sides by 25.

`z - 2 = (125)/(25)`

2) Simplify 125/25 to 5.

`z - 2 = 5`

3) Add 2 to both sides.

`z = 5 + 2`

4) Simplify 5 + 2 to 7.

`z = 7`

Thus, the answer is z = 7.