SOLUTION: -7-{(7-4)-(-6-4)} simplfy expression

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Question 454331: -7-{(7-4)-(-6-4)} simplfy expression
Answer by algebrahouse.com(1659) About Me  (Show Source):
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-7-{(7-4)-(-6-4)}
= -7 - [3 - (-10)] {worked inside parentheses}
= -7 - 13 {worked inside brackets, 3 - (-10)}
= -20 {subtracted}
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