Add.(-3 + 7x7 + 3x9 + 3x8) + (-8x8 + 7x7 + 9 + 6x9)
A. 9x9 - 5x8 + 14x7 + 6
B. 9x18 - 5x16 + 14x14 + 6
C. -11x9 - 11x8 + 12x7 + 9
D. 18x48 + 6
Answer: A
Mathematics
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