Question 737076
a. 
log3(4x-7)=2
4x-7=3^2
4x-7=9
4x=16
X = 4
.
b. 
logx64=2
64=X^2
8=X  (Ignore the negative results -- extraneous)
.
c. 
{{{2^(x+3)=8}}}
{{{x+3=log(2,8)}}}
{{{x+3=log(2,2^3)}}}
{{{x+3=3}}}
{{{x=0}}}
.
d. 
log2(16)
log2(2^4)
4