How to add negative numbers - GRE Quantitative Reasoning
Card 0 of 3
Simplify 
Simplify
The answer is 
Make sure to distribute negatives throughout the second half of the equation.
The answer is
Make sure to distribute negatives throughout the second half of the equation.
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Solve for 
:
Solve for
To solve this problem, you need to get your variable isolated on one side of the equation:
Taking this step will elminate the 
on the side with 
:
Now divide by 
to solve for 
:
The important step here is to be able to add the negative numbers. When you add negative numbers, they create lower negative numbers (if you prefer to think about it another way, you can think of adding negative numbers as subtracting one of the negative numbers from the other).
To solve this problem, you need to get your variable isolated on one side of the equation:
Taking this step will elminate the
Now divide by
The important step here is to be able to add the negative numbers. When you add negative numbers, they create lower negative numbers (if you prefer to think about it another way, you can think of adding negative numbers as subtracting one of the negative numbers from the other).
Compare your answer with the correct one above
Solve for 
:
Solve for
To solve this problem, first you must add 
to both sides of the problem. This will yield a result on the right side of the equation of 
, because a negative number added to a negative number will create a lower number (i.e. further away from zero, and still negative). Then you divide both sides by two, and you are left with 
.
To solve this problem, first you must add
Compare your answer with the correct one above