Wednesday, 16 December 2015

LOGARITHMIC EQUATIONS-5


If log6(3x + 6)=2; find x

   Solution

log6(3x + 6)=2

 (3x + 6)=62   
                      
 3x + 6=36


3x = 36 – 6

3x =  30


3x =  30   
3        3

X = 10


Hence x = 10

TRY THIS...............

If log2(2x - 20)=4; find x


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