Tuesday 30 December 2014

INEQUALITIES 2


If 10x + 8 7 + 3x 9x – 13; find x

Solution

10x + 8 7 + 3x and  7 + 3x 9x - 13

10x – 3x 7 - 8 and  7 +13 9x - 3x

7x 1 and  20 6x

7x 1  and  20 6x
7       7         6      6

x 1/7 and  10/3 x

x 1/7 and  x  ≥ 10/3

TRY THIS…………….


If 14x + 8 7 + 3x 11x – 20; find x

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