The sum of the measures of Angle A and Angle B is 180°.
The measure of Angle A is (2z + 5)º
The measure of Angle B is 145º .
What is the value of x?
Since the sum of the measures of Angle A and Angle B is 180°, we can set up the equation:
(2z + 5)º + 145º = 180º
Combine like terms:
2z + 5 + 145 = 180
Simplify:
2z + 150 = 180
Subtract 150 from both sides of the equation:
2z = 180 - 150
2z = 30
Divide both sides of the equation by 2:
z = 30/2
z = 15
Therefore, the value of x is 15.