philip-holmes_60b6c199d6509
philip-holmes_60b6c199d6509
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1) Call one piece L and the other S. L + S = 12. L = 2S - 4 L = 2S - 4. Put this value of L in the first equation and solve for S. L + S = 12. 2S - 4 + S = 12. Add 4 to both sides of the equation to get: 2S - 4 + S + 4 = 12 + 4. Do…