Question

If the sum of a number and four is multiplied by
two, the result is 28. What is the number?

Answer 1

10

Explanation:

Let the required number be x

2(x+4) =28

x + 4 = 28/2

x + 4 = 14

x = 14 - 4

x = 10

Answer 2

10

Explanation:

The sum of a number and 4 is multiplied by 2, and the result is 28. In other words, letting the unknown number be x:

`2(x+4)=28`

Solve for x. Divide both sides by 2:

`x+4=14`

Subtract 4 from both sides:

`x=10`

So, our unknown number is 10.

And we're done!