Solve -14-(-7): Understanding Double Negative Subtraction

14(7)= -14-(-7)=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:04 Negative times negative is always positive
00:08 Open parentheses
00:11 Find the point (-14) on the axis
00:15 The number is directed, positive
00:18 Movement towards the positive side of the axis is to the right
00:23 Let's take 7 jumps to the right
00:33 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

14(7)= -14-(-7)=

2

Step-by-step solution

Let's remember the rule:

(x)=+ -(-x)=+

We'll write the exercise in the appropriate form:

14+(7)= -14+(7)=

We'll locate the number negative 14 on the number line, from there we'll move 7 steps to the right (since 7 is greater than zero):

-10-10-10-8-8-8-6-6-6-4-4-4-2-2-2000-12-14

We can see that we've reached the number negative 7.

3

Final Answer

7 -7

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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