Math, asked by daelgilbert, 5 months ago

what must added to -15 to obtain -21 ?

Answers

Answered by Nathalie14

Answer:

-6

Step-by-step explanation:

If two positive numbers are multiplied together or divided, the answer is positive. If two negative numbers are multiplied together or divided, the answer is positive. If a positive and a negative number are multiplied or divided, the answer is negative.

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