Solve (-8) + (-12): Adding Two Negative Integers

(−8)+(−12)= (-8)+(-12)=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 Find the point (-8) on the axis
00:06 Positive times negative is always negative, so we subtract
00:09 To subtract, we move in the left (negative) direction on the axis
00:12 Let's calculate
00:15 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

(−8)+(−12)= (-8)+(-12)=

2

Step-by-step solution

Let's locate -8 on the number line and move 12 steps to the left.

Let's note that our result is a negative number:

000-8-8-8-12

Let's remember the rule:

Now let's write the exercise in the appropriate form and solve it:

−8−12=−20 -8-12=-20

3

Final Answer

−20 -20

Practice Quiz

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a is negative number.

b is negative number.

What is the sum of a+b?

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