Answer:
15t
Step-by-step explanation:
10t+9t+6t-10t
19t-4t
All the terms have a variable, t, included. Therefore, they are all like terms
10t-10t+9t+6t
10t plus -10t equal 0, therefore they will cancel
9t+6t
Suppose number is x
Following equation can be written from question statement
Simplifying it further
42 and 30