Friday, 25 November 2016

INEQUALITIES 4


If 11x + 8 7 + 3x 9x – 13; find x

Solution

11x + 8 7 + 3x and  7 + 3x 9x - 13

11x – 3x 7 - 8 and  7 +13 9x - 3x

8x  -1 and  20 6x

8x  -1  and  20 6x
8       8          6       6

x  -1/8 and  10/3 x

x  -1/8 and  x  ≥ 10/3

TRY THIS…………….
  

If 14x + 8 7 + 5x 11x – 20; find x


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