Question

What is the value of z in the equation 3z − 7 = 14? 3 4 7 21

Answer 1

3z - 7 = 14 |add 7 to both sides

3z = 21 |divide both sides by 3

z = 7

Answer 2

Option C is correct

the value of z is, 7

Explanation:

Given the equation:

`3z -7 =14`

Add 7 to both sides we get;

`3z -7+7 =14+7`

Simplify:

`3z =21`

Divide both sides by 3 we get;

z = 7

Therefore, the value of z is, 7