Correct: 5+4=9, 5=2+3, 12+2=14, 12=9+3, 3-3=0, 15-12=3, 20-6=4, 7=14-7, 4+12=16, 13-3=10, 10=10, Incorrect: 3=5+1, 2+6=10, 8-3=11, 1+2=10, 11=5+6, 4-2=12, 12=3, 14-4=9, 9=1+9,

Balancing Simple Equations

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