Tuesday 13 January 2015

INEQUALITIES 1




Find x if: 10x – 12 x + 15 4x.

Solution
10x – 12 x + 15 and  x + 15 4x

10x – x 12+ 15 and  15 4x - x

9x 27(divide by 9 both sides) and  15 3x (divide by3 both sides)

x 3 and  5

Hence; x 3 and  x 5

TRY THIS……….

Find x if 4x – 12 x + 15 6x + 6.

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