Answer:
- 2 + ( - 7 )
Explanation:
Take out parentheses . . . . making it
-2-7
-2 - 7 = -2 + (-7)
-2 - 7
= -9
2 - 7
= -5
-2 - (-7)
= -2 + 7
= 5
-2 + (-7)
2 + 7
= 9
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