To solve the equation \( 12 - \frac{x}{9} = 11 \), follow these steps:
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Start by isolating the term with \( x \): \[ 12 - 11 = \frac{x}{9} \] This simplifies to: \[ 1 = \frac{x}{9} \]
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Next, multiply both sides by 9 to solve for \( x \): \[ x = 1 \times 9 \] Thus: \[ x = 9 \]
So the solution is \( x = 9 \).