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posted by Brianna on Monday, September 12, 2011 at 9:04am.
Points A, B and C are collinear with B between A and C. If AB=3x-4 and BC=4x+7 and AC=12x-12, find the value of x?
Make a sketch and you will see that 12x - 12 = 3x-4 + 4x + 7 easy to solve
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