Mathematics, 16.09.2019 02:10 alexandroperez13

H107b
(2)
(x + y - z + w = 10
x + 3y – 4z +5w = 26
x + 4y – 72 + 7w = 37
(x+2y – 3z +6w = 22

Answers: 2

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H107b
(2)
(x + y - z + w = 10
x + 3y – 4z +5w = 26
x + 4y – 72 + 7w = 37