Question

What is (12m+1) - (5m-4)

Answer 1

(12m + 1) - 5m + 4

12m + 1 - 5m + 4

12m + 5 - 5m

= 7m + 5

Answer 2

`7m + 5`

Explanation:

If you "open up" the parentheses, you would get:

`12m+1-5m+4`

Which, if you combine like terms, is:

`7m+5`

Hope this helps :)