Solution:

2x+3=9; 2x=9-3; 2x=6; x=6/2; x=3;

OR

2X+3=5; 2X=5-3; 2X=2; X=2/2; X=1;

2x + 3 = 9

2x = 9 - 3

Then x = 6/2 = 3

If log 2 + log (3x + 1) = log (2x - 9) + 2, then what is the value of x? Note : Assume all log represented above is to the base of 10.