Solve the system using the matrix inverse method. x + 3y = -8 21x + 6y = 3
A. {(1, -3)}
B. {(3, -1)}
C. {(-1, 3)}
D. {(-3, 1)}
Answer: A
Mathematics
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= 
What will be an ideal response?
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Solve the equation for 
.
?
?
A. 
B. 
C. 
D. 
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Provide an appropriate response.A student is told that there are two solutions to the problem 7x2 = 7x. The student can only find one; that is, x = 1. How could you advise this student?
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Mathematics