Question

Find the zero of 5x – 20 = 0.

Question 10 options:

a)

5


b)

4


c)

0


d)

-20

Answer 1

Add 20 to the right side of the equation so that you have 5x = 20
Divide 5 from each side and you will have x= 4

Your answer is b

Answer 2

The correct option B) 4.

Explanation:

Consider the provided equation.

`5x - 20 = 0`

To find the zero simplify the above equation as shown

Add 20 from both the sides.

`5x - 20+20 = 20`

`5x= 20`

Divide 5 from both the sides.

`(5x)/(5)=(20)/(5)`

`x=4`

Thus, the zero of the equation is
`x=4`.

Hence, the correct option B) 4.