Andrew answered the following inequality, his work is shown below:
-5x - 7 ≤ - 52
-5x ≤ - 45
x ≤ 9
What mistake did he make?
A. He should have added 7 to both sides in the first step.
B. He should have flipped the symbol in the last step.
C. He should have divided both sides by - 5 in the first step.
D. He should have divided negative 45 by negative 5 and gotten - 9.
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