Answer:
x=-1
Explanation:
Add by 1 from both sides of equation.
9x-1+1=-11+1
Simplify.
-11+1=-10
9x=-10
Divide by 9 from both sides of equation.
9x/9=-10/9
Simplify, to find the answer.
x=-10/9
x=-1 is the correct answer.
I hope this helps you, and have a wonderful day!