Find the value of x.
16
3x-4
a. 4
b. 8
C.
6.6
d. 6

How do you use the elimination method for this question? explain, because i really want to understand!

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?