21-5x=6

To solve the equation \(21 - 5x = 6\), follow these steps:

1. Subtract 21 from both sides to isolate the term with \(x\): \[ -5x = 6 - 21 \] \[ -5x = -15 \]

2. Divide both sides by -5 to solve for \(x\): \[ x = \frac{-15}{-5} \] \[ x = 3 \]

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