Solve the system by addition.
- 
= -18
+ 
= -9
A. {(0, -12)}
B. {(0, 12)}
C. {(-12, 0)}
D. {(12, 0)}
Answer: C
Mathematics
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Find an equation of the secant line containing (1, f(1)) and (2, f(2)).f(x) = 
A. y = (-5
- 7)x - 5
+ 14
B. y = (-5
+ 7)x + 5
- 14
C. y = (5
- 7)x - 5
+ 14
D. y = (5
- 7)x + 5
- 14
Mathematics
Add or subtract. Write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation and write the answer in lowest terms.
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics