Question: Solve 3x + 3 = 21.A. x = 6 and x = -8B. x= -6 and x = -8C. x= 6 and x = -6D.


Solve 3x + 3 = 21.A. x = 6 and x = -8B. x= -6 and x = -8C. x= 6 and x = -6D. x=-6 and x = 8
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