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Mathematics, 16.02.2021 17:40 asialuv

Find x, y, z satisfying the equations (x + y)(x + y + z) = 66
(y + z)(x + y + z) = 99
(z + x)(x + y + z) = 77

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Find x, y, z satisfying the equations (x + y)(x + y + z) = 66
(y + z)(x + y + z) = 99
(...
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