How do you solve #13A = 65 #?
The explanation gives a very detailed introduction to the method for solving this type of question!
If we can change the 13 from 13A into the value of 1 we
What you do to one side of the equals you also do the other.
Consider 4=4. This we know to be true. But suppose we subtracted 1 from only the left side we would have
The same process applies to addition, multiplication, division squaring, taking square roots and so on!
Multiply both sides by