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tensa zangetsu [6.8K]
2 years ago
13

What is this answer? 7k-3k+11

Mathematics
2 answers:
agasfer [191]2 years ago
8 0

Answer:

4k+11 is the answer

Step-by-step explanation:

7k-3k =4k

4k+11!

lubasha [3.4K]2 years ago
5 0
The answer is: 4k+11
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For choice A, we have 3 negative signs. The result (whatever number it is) is negative. Choice B is a similar story. Choice C is also negative because we have 1 negative sign. Choices A through C have an odd number of negative signs.

Only choice D has an even number of negative signs. The two negatives multiply to cancel to a positive. The negative is like undoing the positive. So two negatives just undo each other. This is why the multiplied version of choice D will be some positive number.

Or you can think of it as opposites. If you are looking up (positive direction) and say "do the opposite" then you must look down (negative direction). Then if you say "do the opposite", then you must look back up in the positive direction.

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