Friday 4 August 2017

LOGARITHMS 2


If log3(10x - 23)=3; find x.

Solution

log3(10x - 23)=3

 (10x - 23)=33       
                                            
 10x - 23=27

10x = 27 + 23

10x =  50

10x505   
10      10

x = 5

Hence x = 5

TRY THIS…………….

If log3(5x + 6)=4; find x. 

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