Question

There
Write an equivalent expression for 6a + a + 8b + b.
A

Answer 1

7a + 9b

Explanation:

"a" is basically a shorter way of writing "1a;" and this is the same way for any singular variable. Examples would variables like "a," "b," "c," and so on. So the real equation would be 6a + 1a + 8b + 1b. If 2 numbers have the same variable then you can add them together. You solve it like this:

6a + 1a = 7a

8b + 1b = 9b

The equivalent of 6a +a + 8b + b is 7a + 9b.