For the given functions f and g, find the requested function and state its domain.f(x) = 8 - 7x; g(x) = -3x + 7Find f + g.
A. (f + g)(x) = -10x + 15; (-?, ?)
B. (f + g)(x) = 5x; (-?, ?)
C. (f + g)(x) = -3x + 8; 
? 
D. (f + g)(x) = -4x + 15; 
? 
Answer: A
Mathematics
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