1.log x + log 2 = 2
log2x = 2
2x = 10^2
2x= 100
x =50
2. log (x-3) = log(x+8) - log 12
log(x-3) = log[(x+8)/12]
(x-3) = (x+8)/12
12x -36=x+8
11x=44
x=11