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Sample edHelper.com - LinearEquations Worksheet

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Systems of Equations in Three Variables
Solve each system of equations.

 1 3x - 9y + 7z = -21-4x + 5y - 2z = 5-11x + y + 12z = -53
 2 -2x - 8y - 7z = 87x + 9y - 6z = -2-10x + 4y - 5z = 5
 3 -11x + 3y + 12z = 61-12x - 11y + 8z = 195-10x - 6y - 2z = 134
 4 3x + 4y + 9z = -51-y - 5z = 24-11x - 7y - 12z = 55
 5 10x + 3y - z = -553x - 6y - 6z = 36-6x + 2y - 9z = 106
 6 4y + 11z = 85-3x + 6y - 3z = 3-8x - 9y - 12z = -70
 7 5x + 5y - z = -3607x - 3y - 11z = 484x - 10y + 5z = 100
 8 -8x + 6y - 2z = 5544x - 3y - 5z = -115x - 8y - 7z = -178
 9 4x + 4y - 5z = -479-6x + 4y - 5z = 21-11x - 2y - 3z = 431
 10 12x - 10y + z = 705-9x - 7y - 2z = 75x - 10y + 5z = 663
 11 -6x + 5y - 6z = 258x + y + z = -6512x - 9y - 8z = 432
 12 -4x - 3y + 6z = -108-11x + 12y - 7z = -458-x + 8y - 11z = -52
 13 4x - 9y - 3z = -311-6x - 5y + 2z = 161-10x - z = 264
 14 -11x - 7y - 4z = 48-9x + 10y - 5z = 7958x + 2y - 12z = 518
 15 -6x - 6y - 12z = 7211x + y - 4z = -108-9x + 10y + 2z = -408
 16 -5x + 8y + 3z = 1227x - 2y - 12z = -783-8x - 9y - 10z = 15
 17 11x - 6y - 3z = -2744x - 5y + 7z = 145-4x + 6y - 4z = -132
 18 -x + 6y + z = -15-2y - 4z = -68-5x - 5y + 4z = 253

Sample
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