Add or subtract.7.1x3 + 6.8x - 5.1x3 + 12.2 - 3.6x
A. 2.0x3 + 3.2x + 12.2
B. 12.2x3 + 10.4x + 12.2
C. 2.0x3 + 10.4x + 12.2
D. -2x3 + 3.2x - 12.2
Answer: A
Mathematics
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