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25 June, 05:13

Which expression is equivalent to 4 - (-7) ? A 7+4, B 4-7, C - 7-4, D - 4+7

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  1. 25 June, 05:19
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    Hi there! You are subtracting a negative number, which is basically the same thing as adding, because two negatives make a positive. B and C is out, because they do not fit the expression. You are actually adding both numbers and anytime you have to subtract a negative number, you add. When you do basic math, 4 + 7 is 11. Both numbers are negative and D does not work, because you're adding from a negative number. The only answer choice that has the expression is A. The answer is A.
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