Chapter 2 - Solving Equations - 2-3 Solving Multi-Step Equations - Practice and Problem-Solving Exercises - Page 98: 16

$4$

We start with the given equation: $9t-6-6t=6$ We add $6$ to both sides of the equation: $9t-6t=6+6$ We now combine like terms on both sides of the equation: $3t=12$ Finally, we divide by $3$ on both sides of the equation: $t=\frac{12}{3}=4$