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Annette [7]
2 years ago
7

How are the rules for adding and subtracting negative numbers similar to adding and subtracting positive numbers? Justify your r

esponse with an example
Mathematics
1 answer:
Fantom [35]2 years ago
8 0

Answer: the rules are

+(+) Two like signs become a positive sign

−(−) 6−(−3) = 6 + 3 = 9

+(−) Two unlike signs become a negative sign

−(+)

Step-by-step explanation:

Example:  3+(+2) = 3 + 2 = 5, 6−(−3) = 6 + 3 = 9, 7+(−2) = 7 − 2 = 5,8−(+2) = 8 − 2 = 6  hope this helps you :)

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Answer:

Part A = D

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Step-by-step explanation:

Part A:

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so, 100 \leq 20x \leq  1000

Part B:

to leave it only by x, you divide both sides by 20

100/20 = 5, 1000/20 = 50

which 5\leq x\leq 50

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Step-by-step explanation:

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