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24 February, 00:32

2a+3r+1.5p=29.75 (1) a+r+p=13.50 (2) a+3r+4p=29.00 (3) Eliminate a by multiplying equation (2) by - 1 and adding it to equation (3).

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  1. 24 February, 00:41
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    The answer to this question is

    2r+3p=15.50

    Now use equation (1) with equation 2 or equation 3 to eliminate A
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