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Question

Simplify 40 - [30 - {4 + 32 ÷ (10 - ¯¯¯¯¯¯¯¯¯¯¯¯42 )}]

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Solution

40 - [30 - {4 + 32 ÷ (10 - ¯¯¯¯¯¯¯¯¯¯¯¯42 )}]

= 40 - [30 - {4 + 32 ÷ (10 - 2 )}] [Simplifying bar bracket]

= 40 - [30 - {4 + 32 ÷ 8}] [Simplifying ()]

= 40 - [30 - {4 + 4}]

= 40 - [30 - 8] [Simplifying {}]

= 40 - 22 [Simplifying []]

= 18


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