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Solve for p, c, s, & t: 2p+c+s=20; t+2c+s=18; c+t+2c=16; s+c+p+t=21
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Solve for p, c, s, & t: 2p+c+s=20; t+2c+s=18; c+t+2c=16; s+c+p+t=21

User ErnieAndBert
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You can solve for p, c, s, t, one at a time, but that's all.

For example: If t + 2c + s = 18, t = 18 - (2c + s)
User Cami
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