Answer:
q=16
Step-by-step explanation:
You have to get the variable by itself, so add 15 to both sides.
6q-15=81
+15 +15
The first 15 cancels out and 81 plus 15 is 96. The, you have to get "q" by itself by dividing 6 from both sides.
6q=96
This should give you q= 16.