Remove the parentheses from the expression. 

A. 3x + y - 2z - 9 - 3r + 5s
B. -3x - y - 2z - 9 - 3r + 5s
C. 3x + y + 2z + 5 - 3r + 5s
D. 3x + y - 2z - 5- 3r + 5s
E. -3x - y + 2z + 5 - 3r + 5s


Answer: A

Mathematics

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