Tuesday 7 January 2014

INEQUALITIES B5




If 11x + 4 15 + 3x 5x – 10; find x.

Solution

11x + 4 15 + 3x and  15 + 3x 5x – 10

11x – 3x 15 - 4  and  15 +10 5x - 3x

8x 11 and  25 2x 

8x 11  and  25 2x
8        8           2      2

x 11/8 and  25/2 x

x 11/8  and  x  25/2

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