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Question
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What must be subtracted from −1 to get −6?
(a) 5
(b) −5
(c) 7
(d) −7
What must be subtracted from −1 to get −6?
(a) 5
(b) −5
(c) 7
(d) −7
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Solution
(a) 5
Let the number to be subtracted be x.
To find the number, we have:
−1 − x = −6
∴ x = −1 + 6 = 5
Let the number to be subtracted be x.
To find the number, we have:
−1 − x = −6
∴ x = −1 + 6 = 5
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