1. There are two vertical angles. One angle is represented by 15x and the other angle 7x + 40. What is


1. There are two vertical angles. One angle is represented by 15x and the other angle
7x + 40. What is the value of x?
2. There are three supplementary angles. The first angle is 5x – 5, the second angle is
2x, and the third angle is 8x – 10. Find x.
3. There are two complementary angles. The first angle is 6x + 20 and the second angle
is 4x + 10. Find x.


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