Answer:
x = 9
Explanation:
Solve for x: 
11 - x/3 = 8 
 
Put each term in 11 - x/3 over the common denominator 3: 11 - x/3 = 33/3 - x/3: 
33/3 - x/3 = 8 
 
33/3 - x/3 = (33 - x)/3: 
(33 - x)/3 = 8 
 
Multiply both sides of (33 - x)/3 = 8 by 3: 
(3 (33 - x))/3 = 3×8 
 
(3 (33 - x))/3 = 3/3×(33 - x) = 33 - x: 
33 - x = 3×8 
 
3×8 = 24: 
33 - x = 24 
 
Subtract 33 from both sides: 
(33 - 33) - x = 24 - 33 
 
33 - 33 = 0: 
-x = 24 - 33 
 
24 - 33 = -9: 
-x = -9 
 
Multiply both sides of -x = -9 by -1: 
(-x)/(-1) = 9 
 
(-1)/(-1) = 1: 
Answer: x = 9