Add the right simplified terms for the following expressions

Explanation

Strategy

As we combine like terms, we must be careful when working with terms such as t and -t

WHY

Coefficients of 1 and -1 are usually not written

1. 16t - 15t = t   Think: (16 - 15)t = 1t = t
2. 16t - t = 15t   Think: 16t - 1t = (16 - 1)t = 15t
3. 15t - 16t = -t  Think: (15 - 16)t = -1t = -t
4. 16t + t = 17t   Think: 16t + 1t = (16 + 1)t = 17t