Solve the equation. First simplify the expression by combining like terms.
x + 
= 
- 
x + 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Simplify the expression.x2y-4
A. x2y4
B. 
C. 
D. x2y12
Mathematics
Write a linear inequality that describes the shaded region.
A. y ? -2x - 2 B. y ? -2x - 2 C. y ? 2x + 2 D. y ? 2x + 2
Mathematics
Provide an appropriate response.Is the following statement true for every positive integer n? 3 + 9 + 27 + ... + 3n = 
A. No B. Yes C. Cannot be determined
Mathematics
Solve and graph. Write the solution set in set-builder and interval notation.-6 ? x ? -2
A. {x|-6 < x < -2}; (-6, -2)
B. {x|-6 ? x < -2}; [-6, -2) 
C. {x|-6 < x ? -2}; (-6, -2] 
D. {x|-6 ? x ? -2}; [-6, -2]
Mathematics