Write the given system of equations as a matrix equation and solve by using inverses. = k, 4x1 - 12x2 + X3 = k2 + X3 = k3 X1 - X2 - 9x1 a. What are x,, x2, and x3 when k, = 9, k2 = - 8, and kg = - 7? X1 = X2 = X3 =

College Algebra (MindTap Course List)
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Chapter6: Linear Systems
Section6.CT: Chapter Test
Problem 8CT
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Write the given system of equations as a matrix equation and solve by using inverses.
= k,
4x1 - 12x2 + X3 = k2
+ X3 = k3
X1 -
X2
- 9x1
a. What are x,, x2, and x3 when k, = 9, k2 = - 8, and kg = - 7?
X1 =
X2 =
X3 =
Transcribed Image Text:Write the given system of equations as a matrix equation and solve by using inverses. = k, 4x1 - 12x2 + X3 = k2 + X3 = k3 X1 - X2 - 9x1 a. What are x,, x2, and x3 when k, = 9, k2 = - 8, and kg = - 7? X1 = X2 = X3 =
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