useing Cramers rule how do you solve x-2y=5 5x - y = -2?

2007-02-24 09:34:58 · 2 answers · asked by steveo 1 in Science & Mathematics ➔ Mathematics

[1 -2][x] = [5]
[5 -1][y] .. [-2]

|1 -2|
|5 -1| = 9

|5 -2|
|-2 -1| = -9

|1 5|
|5 -2| = -27

x = -9/9 = -1
y = -27/9 = -3

2007-02-24 11:27:15 · answer #1 · answered by Pascal 7 · 0⤊ 0⤋

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2007-02-24 17:47:31 · answer #2 · answered by Calvin J. M 1 · 0⤊ 0⤋

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