Answer:
X=5
Step-by-step explanation:
Collect like terms then move the terms. Then collect liked terms. Calculate and Chang signs
Answer:
h(-6) = 2
Step-by-step explanation:
-x - 4 =
-(-6) - 4 = 2
6-4=2
Let us consider the initial position of train A,
. This implies that
.
Moreover, we have

This implies that the two equations are

The two trains meet if and only if their positions are the same, at the same time:

So, the two trains meet after 2 hours.