X = 8
x = 9
x = 14
x = 15

x = 8

Step-by-step explanation:

The angles 75° and (5x + 35)° are vertical angles and congruent, thus

5x + 35 = 75 ( subtract 35 from both sides )

5x = 40 ( divide both sides by 5 )

x = 8

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )