Solve the equation.2(x + 5) = 5 - 4(x + 5)
A. 
B. - 
C. 
D. 25
Answer: B
Mathematics
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Solve the equation.
= 9
A. {-15} B. ? C. {-3, 15} D. {3, 15}
Mathematics
Divide the real numbers. Write any improper fraction as a whole or mixed number where appropriate.- 
÷ 
A. - 
B. - 1
C. 
D. 1
Mathematics
Solve the system by graphing. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-2, -5)} B. {(-2, 5)} C. no solution; ? D. {(5, -2)}
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 7x + 3
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
+ 3
D. f-1(x) = 
- 3
Mathematics