Answer:
x=17
Step-by-step explanation:
So if you look at CZD you will see that it equals a right angle. So the equation would be 3x+39=90
1.) Subtract the 39 from 90
2.) You will be left with 51 so then you divide that by the 3 in 3x
3.) You will be left with 17 so that will be your answer
