3 years ago

Multiply.

Mathematics

2 answers:

shtirl [24]3 years ago

7 0

When you multiply a negative and a positive you will get a negative answer so 3*7 is 21 so -3 * 7 is -21

solong [7]3 years ago

6 0

The answer is -21 because take 3 times 7 which is 21 and sense there's a negative and positive you would make 21 negative.

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