Just wanted to verify

Discussion in 'Off-Topic Discussions' started by Mr. Engineer, Apr 20, 2005.

  1. Mr. Engineer

    Mr. Engineer member


    Just wanted to verify does:

    X4 </= 0.1X1 + 0.1X2 + 0.1X3 equal 0.1X1 + 0.1X2 + 0.1X3 – X4 >/= 0?
  2. Mike Albrecht

    Mike Albrecht New Member

    If </= mean greater than or equal to then (by simple algebra):

    X4 – X4 </= 0.1X1 + 0.1X2 + 0.1X3 –X4

    0 </= 0.1X1 + 0.1X2 + 0.1X3 – X4


    0.1X1 + 0.1X2 + 0.1X3 – X4 >/= 0
  3. JLV

    JLV Active Member

    Yes,Mr. Engineer, you got it right. You can add at both sides of the inequality. The only thing you gotta emeber is that if you multiply both sides of the inequality by a negative number then the sign of the inequality (less than or greater than ) changes. Everything else is handled like a normal algebraic equation.


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