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Question
9 (a+ 5) + 2 = 11
Solution
9 (a+ 5) + 2 = 11
⇒ 9a + 45 + 2 = 11
⇒ 9a = 11 - 45 - 2
⇒ 9a = 11 - 47 = - 36
⇒ a = `(- 36)/9 = - 4`
∴ a = - 4
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