To solve the equation \(-12 = \frac{b}{3} - 9\), we can follow these steps:
-
Add 9 to both sides to isolate the term with \(b\): \[ -12 + 9 = \frac{b}{3} \] \[ -3 = \frac{b}{3} \]
-
Multiply both sides by 3 to solve for \(b\): \[ -3 \times 3 = b \] \[ -9 = b \]
So, the solution is: \[ b = -9 \]