Question

1) 12-5+7
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2) -6-4-10
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3) (-5)-(-9)
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Answer 1

1) 12 - 5 + 7
7 + 7
= 14

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2) - 6 - 4 - 10
- 10 - 10
= - 20


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3) (-5) - (-9)
- 5 + 9
= 4