Question 105367
this is how you solve this:

4n-15=11n-1
4n-15+15=11n-1+15       you add 15 to both sides.
4n=11n+14 
4n-11n=11n-11n+14       You subtract -11 from both sides.
-7n=+14
-7n/-7=+14/-7           You divide -7 and +14 by -7 and reduce
n=-2                     By reducing you get - 2.


Check.


4n-15
4(-2)-15                                          
-8-15                                 
-23                             hence left side = right side

 11n-1                                
 11(-2)-1
-22-1   
-23