Question

1). -9 + -7 2). -11-3

Answer 1

• Question 1.

-9 + -7

To evaluate the expression above, we have:

-9 + -7

A plus sign followed by a minus sign is the same mathematically as a single minus sign.

Replace + - with a single -

= -9 - 7

Subtract 7 from -9:

-9 - 7 = -16

• Question 2.

-11 - 3

To perform the subtraction above, subtract 3 from -11.

- 11 - 3 = -14

ANSWER:

1) -16

2) -14