171k views
2 votes
(-3)+(5)+(-7)
a. -15
b. -5
c. +1
d. +15​

User Ben Morrow
by
8.1k points

2 Answers

3 votes

Answer:

-5

Explanation:

This can be added/subtracted simply. Just take into account the negative symbols.

We'll start with the first two numbers:

(-3)+(5)

We have a negative number, -3. We'll add 5 positive numbers.

-3, -2, -1, 0, 1, 2

(-3)+(5) = 2.

Now that we have this number, we add it to the final number.

(2)+(-7)

We may be adding, but we are adding a negative number, so we are actually subtracting. We adding 7 negative points to the number 2.

2, 1, 0, -1, -2, -3, -4, -5.

Thus, our final answer is -5.

User Stephan Schinkel
by
8.0k points
6 votes

Answer:

b. -5

Explanation:


( - 3) + (5) + ( - 7) \\ - 3 + 5 - 7 \\ - 10 + 5


\boxed{\bold{Answer:{\boxed{\bold{\green{b.- 5}}}}}}

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User Jason Weathersby
by
8.3k points

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