Solve the system using Gaussian elimination. If (x, y) is the solution to the system, then give the value of 2x + y.
?
?
A. -17
B. -23
C. 23
D. 17
E. no solution
Answer: B
Mathematics
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Solve the matrix equation for X.Let A = 
and B = 
;
B - X = 3A
A.
X = 
B.
X = 
C.
X = 
D.
X = 
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Sketch the straight line with the equation.
?
?
A. ?
B. ?
?
C. ?
?
D. ?
?
E. ?
?
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