Solve the system of equations using matrices. Use Gaussian elimination with back-substitution.3x + 5y - 2w=-132x + 7z - w=-14y + 3z + 3w=1-x + 2y + 4z=-5
A. {(-1, - 
, 0, 
)}
B. {(1, -2, 0, 3)}
C. {(
, - 
, 0, 
)}
D. {(
, -2, 0, 
)}
Answer: B
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Determine the coefficient and degree of the monomial.
x
A. coefficient: 8, degree: 1
B. coefficient: 1, degree: 
C. coefficient: 
, degree: 1
D. coefficient:
, degree: 2
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