9(−7t+4t−10)−9t

Sure, let's solve this step by step:

1. First, distribute the 9 inside the parentheses: 9 * -7t + 9 * 4t - 9 * 10 = -63t + 36t - 90
2. Then, combine like terms: -63t + 36t - 9t = -36t
3. Finally, subtract 90 from -36t to get the final answer: -36t - 90

First, distribute the 9 inside the parentheses:

9 * -7t = -63t 9 * 4t = 36t 9 * -10 = -90

So, the equation becomes -63t + 36t - 90 - 9t.

Next, combine like terms:

-63t + 36t - 9t = -36t -36t - 90

So, the simplified form of the equation is -36t - 90.