Solve the system by the addition method. Be sure to check all proposed solutions. x - 5y = 198x - 5y = -23
A. {(-5, -6)}
B. {(5, -6)}
C. {(-6, -5)}
D. ?
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Find the value. 
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Mathematics