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41-56 - Cramer's Rule Use Cramer's Rule to solve the system. S2r - y = -9 41. (6x + 12y = 33 42. 4x + 7y = 20 x + 2y = 8 x- 6y = 3 — бу— 3x + 2y = 1 [4x + }y = 1 44. 43. lix - ty = - (0.4x + 1.2y = 0.4 45. (10x - 17y = 21 46. 20x – 31y = 39 1.2x + 1.6y = 3.2 x- y + 22 = 0 5x - 3y + : = 6 X - 47. + z = 11 = 0 4y - 6z = 22 7x + 10y 3x 48. -x + 2y = -13 2x, + 3x - 5x3 = 1 -2a + c = 2 a + 2b - c = 9 3a + 5b + 2c = 22 49. X1 + x2 - X3 = 2 50. 2x2 + x3 = 8 r - ty + : - +y +: = # z =} 2x - y 5x = 5 + 3z = 19 51. 52. x- fy + : 4y + 72 = 17 2x 5y 3y + 5z = 4 -== 10 = 4 53. 2x 54. x+ y - z = 8 (3x 4x + 7y = 0 + 5z = 0 x+ y + z + w = 0 x + y = 1 2x + w = 0 y +z = 2 55. 56. z + w = 3 y - : + 2: w - x= 4 miri

41-56 - Cramer's Rule Use Cramer's Rule to solve the system. S2r - y = -9 41. (6x + 12y = 33 42. 4x + 7y = 20 x + 2y = 8 x- 6y = 3 — бу— 3x + 2y = 1 [4x + }y = 1 44. 43. lix - ty = - (0.4x + 1.2y = 0.4 45. (10x - 17y = 21 46. 20x – 31y = 39 1.2x + 1.6y = 3.2 x- y + 22 = 0 5x - 3y + : = 6 X - 47. + z = 11 = 0 4y - 6z = 22 7x + 10y 3x 48. -x + 2y = -13 2x, + 3x - 5x3 = 1 -2a + c = 2 a + 2b - c = 9 3a + 5b + 2c = 22 49. X1 + x2 - X3 = 2 50. 2x2 + x3 = 8 r - ty + : - +y +: = # z =} 2x - y 5x = 5 + 3z = 19 51. 52. x- fy + : 4y + 72 = 17 2x 5y 3y + 5z = 4 -== 10 = 4 53. 2x 54. x+ y - z = 8 (3x 4x + 7y = 0 + 5z = 0 x+ y + z + w = 0 x + y = 1 2x + w = 0 y +z = 2 55. 56. z + w = 3 y - : + 2: w - x= 4 miri

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section: Chapter Questions
Problem 55RE
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41-56 - Cramer's Rule Use Cramer's Rule to solve the system. S2r - y = -9 41. (6x + 12y = 33 42. 4x + 7y = 20 x + 2y = 8 x- 6y = 3 — бу— 3x + 2y = 1 [4x + }y = 1 44. 43. lix - ty = - (0.4x + 1.2y = 0.4 45. (10x - 17y = 21 46. 20x – 31y = 39 1.2x + 1.6y = 3.2 x- y + 22 = 0 5x - 3y + : = 6 X - 47. + z = 11 = 0 4y - 6z = 22 7x + 10y 3x 48. -x + 2y = -13 2x, + 3x - 5x3 = 1 -2a + c = 2 a + 2b - c = 9 3a + 5b + 2c = 22 49. X1 + x2 - X3 = 2 50. 2x2 + x3 = 8 r - ty + : - +y +: = # z =} 2x - y 5x = 5 + 3z = 19 51. 52. x- fy + : 4y + 72 = 17 2x 5y 3y + 5z = 4 -== 10 = 4 53. 2x 54. x+ y - z = 8 (3x 4x + 7y = 0 + 5z = 0 x+ y + z + w = 0 x + y = 1 2x + w = 0 y +z = 2 55. 56. z + w = 3 y - : + 2: w - x= 4 miri
Transcribed Image Text:41-56 - Cramer's Rule Use Cramer's Rule to solve the system. S2r - y = -9 41. (6x + 12y = 33 42. 4x + 7y = 20 x + 2y = 8 x- 6y = 3 — бу— 3x + 2y = 1 [4x + }y = 1 44. 43. lix - ty = - (0.4x + 1.2y = 0.4 45. (10x - 17y = 21 46. 20x – 31y = 39 1.2x + 1.6y = 3.2 x- y + 22 = 0 5x - 3y + : = 6 X - 47. + z = 11 = 0 4y - 6z = 22 7x + 10y 3x 48. -x + 2y = -13 2x, + 3x - 5x3 = 1 -2a + c = 2 a + 2b - c = 9 3a + 5b + 2c = 22 49. X1 + x2 - X3 = 2 50. 2x2 + x3 = 8 r - ty + : - +y +: = # z =} 2x - y 5x = 5 + 3z = 19 51. 52. x- fy + : 4y + 72 = 17 2x 5y 3y + 5z = 4 -== 10 = 4 53. 2x 54. x+ y - z = 8 (3x 4x + 7y = 0 + 5z = 0 x+ y + z + w = 0 x + y = 1 2x + w = 0 y +z = 2 55. 56. z + w = 3 y - : + 2: w - x= 4 miri
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