sum of triangle 180. the 2nd angel measures twice the first, and the 3rd angel measures 15 degrees less than the second. what is the measure of each angel?
i really dont get this one

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Suppose that angle is x.
1st: x
2nd: 2x
3rd: 2x - 15
Now.
x + 2x + 2x -15 = 180
Solve.

5x-15=180--->5x=165--->x=33

right.

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