Answer:
30
Step-by-step explanation:
We know that in this case, since this is an intersection, the opposite sides are the same. Therefore, we can make a equation like this:
75 = 3x-15
Then we get:
90=3x
30=x
Answer:
The value of x is 30.
Step-by-step explanation:
The value of x is 30 because 3*30 equals 90 and 90 minus 15 is equal to 75. The total is equal to the angle ST.
