9(11-k)-=3(3k-9)

Solution for 9(11-k)-=3(3k-9) equation:

9(11-k)-=3(3k-9)

We simplify the equation to the form, which is simple to understand 
9(11-k)-=3(3k-9)

Reorder the terms in parentheses
+(+99-9k)=-3*(3k-9)

Remove unnecessary parentheses
+99-9k=-3+*(+3k-9+)

Reorder the terms in parentheses
+99-9k=+(-9k+27)

Remove unnecessary parentheses
+99-9k=-9k+27

We move all terms containing k to the left and all other terms to the right. 
-9k+9k=+27-99

We simplify left and right side of the equation. 
k=-72

0=-72

The left and right sides are not equal, therefore there is no solution. This equation is invalid.