three times a number decreased by one equals 10

Question

Three  Times a number decreased by one is 10 

Answer 1

3x -1 + 10

 

3x = 11

 

x = 11/3

 

OR

 

3(x-1) = 10

 

3x - 3 = 10

 

3x = 13

 

x = 13/3

 

Language of problem as stated is unclear...