Question

What is the number could be added to the product of (-7)(-6) so that the sum is equal to 27?

Answer 1

-15

Explanation:

This is correct because there's two negatives which make a positive meaning you would do 7 x 6 which is 42 then you would do 42 - 27 which gives you -15

Answer 2

You would add - 15 to (-7)(-6)

Explanation:

Solution

Notice that 2 minuses multiplied gives a plus.

(-7)(-6) + x = 27 Combine the left

42 + x = 27 Subtract 42 from both sides.

42-42 + x = 27-42

x = -15