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4x7 = 8 + 1
3 + 2 = 11 - 3 = 0x9
7 - 7 = 2 + 4 = 8-7
3x8 = 1 + 9 = 9x4
15 - 8 = 14 - 6 = 4 + 8
4x9 = 8x2 = 8 + 7
3 + 9 = 9 + 1 = 3x5
8 - 4 = 6 - 1 = 15-7
1x5 = 7 + 9 = 9 + 3
2x6 = 8 - 5 = 10-2
12 - 5 = 6x4 = 9-6
7x9 = 6 + 6 = 9x9
2 + 8 = 10 - 1 = 12-9
8x4 = 4x3 = 7 + 2
5 + 0 = 6x6 = 7x6
11 - 6 = 4 + 0 = 17-8
5 + 8 = 7 - 3 = 4 + 7
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