Multiple Choice
Use the method of substitution to solve the system. 
A) ( - 1, -12 ) , ( 8, 68 )
B) ( 9, 68 )
C) ( - 1, -12 )
D) ( - 1, -12 ) , ( 9, 68 )
E) no solution
Correct Answer:
Verified
Correct Answer:
Verified
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