Question

Find the difference (-7ab-7a-4)-(-5ab-1)

Answer 1

-2ab - 7a - 3

Explanation:

First you need to distribute the negative through the second set of parenthesis -(-5ab-1) will result in +5ab + 1.

Next we combine the like terms:

(-7ab - 7a -4) + 5ab + 1

-7ab + 5ab and -7a and -4 + 1