Can I write the letters before the numbers when I use the dot multiplier? Why?

Can I write the letters before the numbers when I use the dot multiplier? Why?

Generally, this is wrong. It's something conventional. For example, why is * called a multiplication sign, not a division sign

What is the result of X × x × 6 omitting multiplication sign

The result is the same, the result is 6x & # 178;

May I ask "can 4 × (3 + x) be changed into 4 (3 + x) by omitting the multiplication sign?"
Can 4 × (3 + x) be changed into 4 (3 + x) by omitting the multiplication sign?
In writing, the multiple sign can be omitted between letters and numbers
If you can, then
Can 4 × (3 + 2) be changed into 4 (3 + 2) by omitting the multiplication sign?
Because of writing, you can't omit the multiple sign between numbers
But what about numbers and formulas?
However, 3 × 3 can not omit the multiplier sign because there will be ambiguity that it is 33.
4 × (3 + 2) omitting the multiplier sign and changing it into 4 (3 + 2) does not produce ambiguity

4 × (3 + x) is OK, but 4 × (3 + 2) is not
In addition, there is no band fraction in the equation, which is also the reason