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Question
If 3 – x = –4, then x = ______.
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Solution
If 3 – x = – 4, then x = 7.
Explanation:
Given that, 3 – x = –4
⇒ – x = – 4 – 3 ...[Transposing 3 to RHS]
⇒ – x = –7
⇒ x = 7 ...[Multiplying both sides by (–1)]
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