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Question
Simplify: 9x + 5 – [4x – {3x – 2 (4x – 3)}]
Solution
9x + 5 – [4x – {3x – 2 (4x – 3)}]
= 9x + 5 – [4x – {3x – 8x + 6}]
= 9x + 5 – [4x – 3x + 8x – 6]
= 9x + 5-4x + 3x - 8x + 6
= 9x + 3x - 4x - 8x + 5 + 6
= 12x - 12x + 11
= 11
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