Answer: 3x + 5
Explanation:
First, we need to understand that x is a variable, an unknown number. Think back to how you would do multiplication with numbers that you know. Here are some examples:
If you want to multiply 2 by 3, you would write 3 × 2.
If you want to multiply 3 by 256, you would write 3 × 256.
If you want to multiply 3 by x, you would write 3 × x.
If you want, you can simplify 3 × x to 3x. 3x just means that you are multiplying three by x.
Now we have finished the first step. 3x means three times a number. Now, what about the plus 5?
For the next part, we need to add five to this expression. Think back to how you know how to do addition.
If you want to add 5 to 9, you would write 9 + 5.
If you want to add 5 to 24, you would write 24 + 5.
If you want to add 5 to x, you would write x + 5
If you want to add 5 to 3x, you would write 3x + 5.
In conclusion, 3x + 5 means three times a number (x) plus five. If this doesn't make sense yet, don't worry. You have got this. Don't give up. For more information, search "How to write an expression."