Question

Evaluate 3x + 12 when x = 9

Answer 1

39

Explanation:

To solve your question we must replace x with the given number which is 9 so,

3 (9) +12 =

We can now solve it by multiplying 3 * 9 which will give us 27. Then we can add 27 to 12.

27 + 12 = 39

Hope this helps!!

Answer 2

The answer is 39.

Explanation:

You have to substitute the value of x into the expression :

`3x + 12`

`let \: x = 9`

`3(9) + 12 = 27 + 12 = 39`