What is 3x 4 when x = 7?

To solve the expression 3x 4 when x = 7, we first need to clarify what the expression means. Typically, in algebra, we interpret ‘3x’ as ‘3 times x’, and ‘4’ can stand for the number four being added or multiplied to it.

So, if we interpret ‘3x 4’ as 3 times x plus 4, we do the following steps:

1. Substitute the value of x:
2. 3 * 7 + 4
3. Calculate the multiplication:
4. 21 + 4
5. Finally, add:
6. 25

Therefore, the final answer is 25.