8,642-x:100=7,09

To solve the equation \( 8,642 - \frac{x}{100} = 7.09 \), we can follow these steps:

1. Isolate the term with \( x \): \[ 8,642 - 7.09 = \frac{x}{100} \] \[ 8,634.91 = \frac{x}{100} \]

2. Multiply both sides by 100 to solve for \( x \): \[ x = 8,634.91 \times 100 \] \[ x = 863,491 \]

Therefore, the value of \( x \) is \( 863,491 \).