79 times 43 is 3397, but what is the answer if both 79 and 43 are negative numbers? Here we will determine if the answer to negative 79 times negative 43 is positive 3397 or negative 3397.
There are many different ways to explain and determine if the answer to negative 79 times negative 43 is -3397 or +3397 using mathematical terms such as additive inverse and mathematical laws like the Distribute Law.
We will take a different approach - process of elimination: We will simply test if -3397 is the correct answer using basic algebra.
We will test if -3397 is correct by setting up the equation negative 79 times negative 43 equals negative 3397, and then simplifying the equation to see if it is true.
(-79) (-43) = (-3397)
Divide both sides of the equation by (-43) :
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| = |
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The numerator and denominator on the left side both have (-43) which even each other out and can be removed:
| (-79) = |
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The numerator and denominator on the right side both have a minus sign (-) which even each other out and can be removed:
| (-79) = |
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A numerator of 3397 and denominator of 43 on the right side is the same as 3397 divided by 43 which is 79. Now we end up with this untrue equation:
(-79) = (79)
-79 is NOT equal to 79, thus we have proven that negative 79 times negative 43 is not equal to -3397. The answer must therefore be 3397:
-79 x -43 = 3397
The above applies to all math problems where you multiply two negative numbers. Multiplying two negative numbers such as negative 79 times negative 43 will always have a positive answer.
Negative Times Negative Calculator
Here you can multiply another two negative numbers together.
What is negative 79 times negative 44?
Here is the next problem on our list that we have explained and calculated.
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