12 16 3 8 14 6 7 10 ()-()=4 ()-()=9 ()+()=14 ()+()=13

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12 16 3 8 14 6 7 10 ()-()=4 ()-()=9 ()+()=14 ()+()=13
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12 16 3 8 14 6 7 10 ()-()=4 ()-()=9 ()+()=14 ()+()=13
12 16 3 8 14 6 7 10 ()-()=4 ()-()=9 ()+()=14 ()+()=13

12 16 3 8 14 6 7 10 ()-()=4 ()-()=9 ()+()=14 ()+()=13
16-12=4
12-3=9
8+6=14
10+3=13