Solve the system of equations using the addition method. 7x + 4y = -1-7x - 10y = 13
A. (-7, -2)
B. (1, -2)
C. (-1, 2)
D. (7, 2)
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Simplify the expression using the order of operations.16 - 5 + 3
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A. 
B. 
C. 
D. 
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