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bogdanovich [222]
3 years ago
9

30 points!!

Mathematics
2 answers:
Delicious77 [7]3 years ago
6 0

1. 18e + (-6e) = 12e

2. 0x - (-21x) = 21x

3. 90z + (-10z) = 80z

Sedbober [7]3 years ago
5 0

Answer:

1. 18e + (-6e) = 12e

2. 0x - (-21x) = 21x

3. 90z + (-10z) = 80z

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