Stitz-Zeager_College_Algebra_e-book

486 systems of equations and matrices solution for p 2

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Unformatted text preview: y + 7z = 7 3x + 4y − z = 13 (l) 2x − 19y − 19z = 2 4x − y + z = 5 2y + 6z = 30 (c) 4 x+y+z = x+z = 5 2x − 4y − z = −1 (m) x−y = 2 4x − y + z = 5 2y + 6z = 30 (d) x−y+z = 8 x+z = 6 3x + 3y − 9z = −6 (n) x + y + z = −17 7x − 2y + 5z = 39 (e) y − 3z = 0 2x − 3y + z = −1 7 x − 2y + 3 z = 4x − 4y + 4z = −13 (o) −3x + y + 2z = −5 (f) 6x − 5y + 7z = −25 2x + 2 y + z = 3 2x1 + x2 − 12x3 − x4 = 16 3x − 2y + z = −5 −x1 + x2 + 12x3 − 4x4 = −5 x + 3y − z = 12 (g) (p) 3x1 + 2x2 − 16x3 − 3x4 = 25 x + y + 2z = 0 x1 + 2x2 − 5x4 = 11 2x − y + z = −1 x1 − x3 = −2 4x + 3 y + 5 z = 1 (h) 2x2 − x4 = 0 5y + 3z = 4 (q) 0 x1 − 2x2 + x3 = x − y + z = −4 −x3 + x4 = 1 −3x + 2y + 4z = −5 (i) x1 − x2 − 5x3 + 3x4 = −1 x − 5y + 2z = −18 x1 + x2 + 5x3 − 3x4 = 0 2x − 4y + z = −7 (r) x2 + 5x3 − 3x4 = 1 x − 2y + 2z = −2 (j) x1 − 2x2 − 10x3 + 6x4 = −1 −x + 4y − 2z = 3 2. Find two other forms of the parametric solution to Exercise 1c above by reorganizing the equ...
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