Answer:
Symbols (or letters) in an equation can be important.
Step-by-Step Explanation:
The symbol [or letter (x, m, n, etc.)] is usually not important because the symbol represents a number. Sometimes it is important because each symbol (or letter) can represent another number.
for example: n+3 = 4-m (the symbol/ letters are different because they represent a different number).
for another example: n+3 = 4 (the symbol/ letter is only one letter).