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Reasoning » Puzzle
If the numbers 15 and 21 are interchanged, then which of the following equations will be correctly balanced?
26 + 21 × 15 ÷ 3 – 14 = 108
63 ÷ 15 + 21 × 5 – 4 = 74
62 ÷ 31 – 21 + 15 × 3 = 80
24 – 21 ÷ 3 + 15 – 7 = 23