Answer:
x = 8
z = 65
Explanation:
Vertical angles are congruent
14x + 3 = 5x + 75 Subtract 5x from both sides
14x - 5x + 3 = 5x - 5x + 75
9x + 3 = 75 Subtract 3 from both sides
9x + 3 - 3 = 75 - 3
9x = 72 Divide both sides by 9
=

x = 8
5x + 75
5(8) + 75
40 + 75
115
Adjacent angles are supplemental
115 + z = 180 Subtract 115 from both sides
115 - 115 + z = 180 - 115
z = 65
Helping in Jesus' name.