Answer:
You may divide by a variable. But only if you know the variable is non-zero. So, if setting the variable to zero makes both sides of the equation zero, we have a solution that that variable is 0, or the equation with the variable divided out holds. E.g. solve x(x-1) = 0. you wecomle thank me later
Sometimes, a letter or more may get added/ removed/ changed when suffix/ prefix is added.
You can easily make a profit if you know how to hustle people.
Answer:
Please ask this question in English next time if you can but no I haven't heard of it.
Explanation:
