Simplify both sides of the equation.
[tex]10 + -9 = \frac{1}{11}y \ \textgreater \ (10 + -9) \frac{1}{11}y (Combine the like terms) \ \textgreater \ 1 = \frac{1}{11}y \ \textgreater \ [/tex]
Then you want to flip the equation.
[tex] \frac{1}{11}y = 1 [/tex]
Then you want to Multiply both sides by 11!
[tex]11 * ( \frac{1}{11}y) = 11 * 1 \ \textgreater \ y = 11 [/tex]
