whats the combined like term of 2g+7-6g

Question

 how to figure out the answer to combined like terms

Answer 1

2g + 7 - 6g

 

Rearrange to put common variables together:

2g-6g+7

 

How many g terms do we have?

There are 2 of them and we take away 6 of them

2-6=-4 .... There are a total of -4g in the expression

 

2g+7-6g= -4g +7

 

We cannot combine the 7 with the -4g because at

the moment we don't know the value of -4g since

there is still a variable in it.

 

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Try this one as an example:

 

2x - 3y + 5x +8y -12

 

= 2x + 5x -3y + 8y -12

 

= 7x + 5y -12

 

Hope this helps.

Answer 2

Hi TEE,

 

What is combining like terms?

This is where we simplify an expression by merging parts of the expression together.

 

In your problem we first need to determine what we can merge.

Problem:  2g + 7 - 6g   (spacing it out makes it easier to see the parts)

What are the like terms?

In this problem, the like terms are 2g and 6g.  These can be merged.

2g - 6g = -4g

 

So...

2g + 7 - 6g = -4g + 7