We use an equation to say that two things are equal. An equation always has an equal sign "=". So an equation tells us that the left side is equal to the right side. In this case, we have the following equation:
[tex]a =5[/tex]
So the only value that makes this equation to be true is 5, because:
[tex]5=5[/tex]
For instance, let's choose another value, say, 8. So substituting:
[tex]6 =5 \ \text{So this statement is false because} \ 6\neq 5[/tex]
