ISEE Upper Level Math : How to subtract variables
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Example Questions
Example Question #1 : How To Subtract Variables
Simplify:
Example Question #2 : How To Subtract Variables
Simplify the expression:
Group and collect like terms:
Example Question #3 : How To Subtract Variables
Simplify:
The expression cannnot be simplified further.
Group and collect like terms:
Example Question #4 : How To Subtract Variables
What is 
Insufficient information is given to answer this question.
Example Question #5 : How To Subtract Variables
Simplify:
To simplify this problem we need to combine like terms.
Example Question #6 : How To Subtract Variables
Simplify:
To simplify this problem we need to combine like terms.
Example Question #7 : How To Subtract Variables
Simplify:
To simplify this problem we need to combine like terms.
Example Question #8 : How To Subtract Variables
Simplify the following expression:
Simplify the following expression:
Let's begin by subtracting the 12y
From here, our answer should be apparent:
So our answer is just 0
Example Question #931 : Isee Upper Level (Grades 9 12) Mathematics Achievement
Simplify the following expression:
Simplify the following expression:
We can only subtract variables with the same exponent.
In this case, we can only combine the first two terms.
To do so, keep the exponents the same and subtract the coefficients.
So our answer is:
Example Question #932 : Isee Upper Level (Grades 9 12) Mathematics Achievement
Simplify the following expression:
Simplify the following expression:
Now, to complete this, we need to realize that we can only subtract variables with the same exponent.
In this case, we can only combine our first two terms, because they both have an exponent of 7. The third term has an exponent of 8, so it cannot be combined and must be left as is.
So, our answer must be:
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