You might have made an error the first time you solved for x. I got x = -0.5.
When you have your log base 4, the way you cancel that out is by making 4 the base on both sides, so you get 4^(log4) to reduce to 1, and you're left with:
2x + 3 = 4^(1/2) ... Simplify
2x + 3 = 2
2x = -1
x = -1/2
If you plug that back in, everything checks out. Maybe double check your use of logarithm/exponent properties? 
 
        
             
        
        
        
1) you add the variables in the bracket 
(4+5)÷3×4
9÷3×4
2) you multiply 3 by 4
9÷3×4
9÷12
3) now you divide 9 by 12
9÷12
=0.75
 
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
anything greater than 195.