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Matrices
(Answer ID # 0313134)
Write the linear system as a matrix equation.

1.   -9x + 1y = 130
-5x - 4y = 54






2.   -2x - 3y + 8z = 43
-5x - 7y + 3z = -8
-4x - 1y + 6z = 51






3.   -9x + 8y + 2z = -63
3x - 6y - 8z = 115
-4x - 9y - 7z = 109






4.   -5x + 2y = -47
-5x - 2y = -23






5.   -6x + 3y + 8z = -117
4x - 7y - 1z = 110
-3x + 6y - 7z = -66






6.   -1x - 5y = -51
9x - 2y = -152






7.   1x + 3y = -24
-6x + 5y = 29






8.   2x + 9y - 7z = -49
-6x - 1y + 4z = -3
-9x + 3y + 7z = -62






9.   -5x - 2y + 8z = -44
7x - 1y - 8z = 34
4x - 3y + 2z = -48






10.   9x - 6y = 15
-6x - 8y = 110






11.   2x - 1y - 4z = 45
7x - 5y + 3z = 46
-2x + 3y - 6z = 15






12.   9x - 1y = -120
-8x + 7y = 70






13.   5x - 9y + 4z = -137
-6x + 7y - 8z = 159
-2x - 1y - 3z = 26






14.   -1x - 8y = 0
5x + 4y = 36






15.   3x - 9y = 126
6x - 2y = 76






16.   3x - 1y - 9z = 64
5x - 4y - 7z = 43
6x - 2y + 8z = -132






17.   6x - 5y = 95
-4x - 2y = -26






18.   9x + 3y - 8z = -136
-5x - 8y + 3z = 138
4x - 7y - 1z = 44







 


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