Answer:
x = 19
z = 105
Explanation:
Because these are two intersecting lines, the two opposite angles are equal:
6x - 39 = 75
Solving this equation gives you x:
6x = 114
x = 19
In order to solve for z, we must remember that two angles on a straight line are supplementary angles meaning that, if added together, they equal 180°. In this case:
75 + z = 180
Solving this equation gives you z:
z = 105