Economy, asked by kambojash007, 11 months ago

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xi – x2 + 2x3 + x4 = 1
2x1 + x2 – x3 + 3x4 = 3
x1 + 5x2 – 8x3 + x4 = 1
4x1 + 5x2 – 7x3 + 7x4 = 7

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Answered by xiaomi5

1

Answer:

solve each andvevery Algeria terms

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