Solve 11 y minus 8 y minus 8 equals 31.96.

To solve the equation, we need to combine like terms first:

11y - 8y - 8 = 31.96
3y - 8 = 31.96

Next, we isolate the variable y by adding 8 to both sides:

3y - 8 + 8 = 31.96 + 8
3y = 39.96

Finally, we solve for y by dividing both sides by 3:

3y/3 = 39.96/3
y = 13.32

Therefore, the solution to the equation is y = 13.32.