Perform the indicated operations.(8x7 + 3x6 - 6x5 - 7) + (7x7 + 4x6 + 8x5 - 5)
A. 15x7 + 7x6 + 2x5 - 12
B. 15x7 - 7x6 - 2x5 - 12
C. 15x7 + 7x6 - 2x5 - 12
D. 15x7 - 7x6 + 2x5 - 12
Answer: A
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