Find x, y, z satisfying the equations
(x + y)(x + y + z) = 66
(y + z)(x + y + z) = 99
(...
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
Answers: 3
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