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OpenStudy (anonymous):
Solve the matrix equation for a, b, c, and d. (a-b) (b+a) (3d+c) (2d-c) Equals 8 1 7 6
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OpenStudy (bahrom7893):
a-b = 8 b+a = 1 So, a = 8+b, b+8+b=1, 2b = -7, b = -7/2
OpenStudy (bahrom7893):
a = 8-7/2 = 9/2
OpenStudy (bahrom7893):
repeat for 3d+c and 2d-c
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