Question

The difference of twice a number and 4 is 16 .

Answer 1

2x - 4 = 16

Explanation:

We need to express this:

2x - 4 = 16.

To solve for x.

2x = 20

x = 10

Answer 2

Let X be the number.

Twice the number would be 2x

The difference between the two, would be subtraction, so you would subtract 4 from 2x

The equation becomes 2x-4 = 16

Now solve for x:

2x-4 = 16

Add 4 to each side:

2x = 20

Divide both sides by 2:

x = 20/2

x = 10

The number is 10.