Final answer:
When t = 2, the expression 15t - 2t simplifies to 26 after combining like terms and substituting the value of t.
Step-by-step explanation:
When calculating 15t - 2t for t = 2, you are performing an operation known as combining like terms in algebra. Simply subtract 2t from 15t, which results in 13t. Now, substitute t with 2, which means multiplying 13 by 2. This leads to an answer of 26.
The original question mentioned a comparison of 15t - 2t with 2t - 15t. The two are not equivalent because the order of terms affects the sign of the result when subtraction is involved. However, for the value of t = 2, 15t - 2t is specifically equal to 26.
The expression 15t-2t can be simplified by combining like terms. In this case, the like terms are the terms with the variable t. To combine like terms, we add or subtract the coefficients of t. In 15t-2t, the coefficient of t is 15 and -2. Adding them together, we get 15t-2t = 13t.