Answer:
A. 9x - (-5 + 6x) = 9x + 5 -6x = 3x + 5
B. 9x -(5 -6x) = 9x - 5 + 6x = 3x - 5
C. 9x - (6x + 5 ) = 9x - 6x -5 = 3x - 5
D. 9x -(6x -5 ) = 9x - 6x +5 = 3x + 5
E. 9x -(-6x +5) = 9x + 6x -5 = 15x -5
options : A and D
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