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emmainna [20.7K]
4 years ago
7

13. 2 – (–8) + (–3) = A. 1 B. 12 C. 7 D. 14

Mathematics
2 answers:
baherus [9]4 years ago
7 0

ANSWER

C. 7

EXPLANATION

We want to evaluate

2 - (  - 8) + ( - 3)

We use the order of operations PEDMAS.

Dealing with the parenthesis first,we have

2  -  - 8+- 3

Note that:

-    -  =  +

and

-  +  =  -

Our expression now becomes:

2 + 8 - 3

Next, we add to get:

10 - 3

We finally subtract to get,

7

The correct answer is C

OleMash [197]4 years ago
5 0
<h2>Hello!</h2>

The answer is: C. 7

<h2>Why?</h2>

To solve the problem, first, we need to consider the signs out and inside of the parenthesis.

We must remember the following rule:

--=+\\+-=-

We are given the following expression:

2-(-8)+(-3)

Then, we can rewrite it using the rule of the signs, we have:

2--8+-3=2+8-3=2+8-3

2+8-3=10-3=7

Hence, the correct option is C. 7.

Have a nice day!

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