Question

By what number should- 324
be deceided to obtain - 18
write down a pairs of integer whoose sum is -9

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Answer 1

Answer:

the number is 18

-1+(-8),-2+(-7),-3+(-6),-4+(-5)

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Answer 2

Step-by-step explanation:

$(1) + 306 \\ - 4 - 5 = - 9$