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posted by Tristan on Thursday, May 9, 2013 at 10:23pm.
Solve the equation |2x − 5| £ 9
recall that |n| = n if n>=0 -n if n<0 So, we have two possibilities. If 2x-5 >= 0, 2x-5 = 9 x = 7 If 2x-5 < 0, -(2x-5) = 9 2x-5 = -9 x = -2 So, x = -2,7
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