9x – 6 = 21

1 answer

To solve the equation \( 9x - 6 = 21 \), follow these steps:

  1. Add 6 to both sides:

    \[ 9x - 6 + 6 = 21 + 6 \] \[ 9x = 27 \]

  2. Divide both sides by 9:

    \[ x = \frac{27}{9} \] \[ x = 3 \]

So the solution is \( x = 3 \).