91.3k views
4 votes
5+(-7)=
a) -12
b) -2
c) 2
d) 12
e) none of these

User Navyblue
by
8.2k points

2 Answers

7 votes

Answer:

-2

Explanation:

Our task is to add the integers:


\twoheadrightarrow\quad\sf{5+(-7)}

Recall that adding a negative is the same thing as subtracting a positive. So, you can think about this as subtracting positive 7 instead of adding negative 7.


\twoheadrightarrow\quad\sf{5-7}

Now, think of this as 7 - 5, which is 2. But now, remember about the order of the numbers. Originally, we had 5 - 7. So, we'll change the sign of our answer. We get:


\twoheadrightarrow\quad\sf{-2}

User Bhupesh Varshney
by
8.4k points
4 votes

Answer:

b) -2

Explanation:

5+(-7) = 5 - 7 = - 2

So, the answer is b) -2

User Aimfeld
by
8.1k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories