Solve the Expression: Adding Like Terms in (+x)+(+3x)

(+x)+(+3x)= ? (+x)+(+3x)=\text{ ?}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:06 First, let's simplify things.
00:10 Find the point X on the axis.
00:13 Add three X to the positive side of the axis.
00:18 Now, collect the like terms.
00:20 And that's how we solve the problem!

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

(+x)+(+3x)= ? (+x)+(+3x)=\text{ ?}

2

Step-by-step solution

First let's remember the rule:

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

Now let's write the exercise in the following way:

x+3x= x+3x=

We'll can then add x x to the number line values and move 3 steps to the right:

2X2X2X3X3X3X4X4X4X1X1X1X

Therefore, the solution is:

x+3x=4x x+3x=4x

3

Final Answer

4x 4x

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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