Question: Solve +6 7 = 8. A. x = -9 and x = 21 x B. = 9 and x = -21 C. x =
Solve +6 7 = 8. A. x = -9 and x = 21 x B. = 9 and x = -21 C. x = 9 and x = -9 x D. x = 9 and x = 21
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