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Add parentheses at appropriate positions to make the equation true. The first 7 times 9 + 12 divided by 3-2 = 75, the second 7 times 9 + 12 divided by 3-2 = 89 It doesn't matter
7×9＋12÷（3－2）=75
7×（9＋12÷3）－2=89
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