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To solve a system of inequations by graph. 02 may 2011

To solve a system of n inequations in plane. Open file to use input by "prompt" Reset by button Create by button for this example : for number of inequations : 4 for each equation you can write for inequation1 : x>=0 for inequation2 : y>=0 for inequation3 : 2x+y<=10 for inequation4 : x+2y<=10