Answer:
-23
Step-by-step explanation:
(t−8)−(t+15) = t-8-t-15 (one plus and one minus makes one minus)
t-8-t-15 = -8-15 (t-t = 0)
-8-15 = -23
(t-8)-(t+15)
t-8-t-15
t-t-8-15
