3 years ago

Simplify 1) 8-(2+7) 2) 9-(2-7) 3) 8-(-2+7) 4) 8-(-2-7)

Mathematics

1 answer:

Zarrin [17]3 years ago

7 0

1). 8-9=-1
2). 9–9=18
3). 8–2+7=8+9
4). 8–2-7=8+5

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