is xD included or is it emoticon?

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is xD included or is it emoticon?

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Multiply each term by LCD (b) (b + 12) (8)

(b)(b+12)(8)(1/b) + (b)(b+12)(8)(1/b+12) = (b)(b+12)(8)(1/8)

8b + 96 + 8b = b² + 12b

b² + 12b - 8b - 8b - 96 = 0

b² - 4b - 96 = 0

b² - 4b - 96 = 0

(b - 12) (b + 8) = 0

b - 12 = 0 b + 8 = 0