Mathematics · Simplification

Following the order of operations, the value of 81 - [20 + 7 × (30 - 3 × 9)] is:

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140✓
20
320
430

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Following the order of operations, the value of 81 - [20 + 7 × (30 - 3 × 9)] is:

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Following the order of operations, the value of 81 - [20 + 7 × (30 - 3 × 9)] is:

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