Monday 3 March 2014

INEQUALITIES C3

 Find x if4x – 12 x + 15 4x

Solution

4x – 12 x + 15 and  x + 15 4x

4x – x 12+ 15 and  15 4x - x

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

x 9 and  5 x


hence x 9 and  x 5

TRY THIS.........

Find x if 4x – 36  x + 50  6x

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