The 347 students who listed soccer as their favorite sport were 13 less than three times the number of students who listed basketball as their favorite sport.
I assume you want to know the number of students (n) who listed basketball as their favourite sport!
3*n - 13 = 347
Add 13 to both sides
3*n = 360
Divide both sides by 3
n = 120.
There are 120 students who listed basketball as their favourite sport.
.
1,028 is the answer right or wrong