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To solve this problem, we need to set up an equation using the information given. Let's call the measure of the first angle (x-5)° and the measure of the second angle (3x)°.
According to the problem, an obtuse angle is formed when these two angles are added together and the result is 107°. Therefore, we can set up the equation:
(x-5) + (3x) = 107
Simplifying, we have:
4x - 5 = 107
Adding 5 to both sides:
4x = 112
Dividing both sides by 4:
x = 28
Now that we know the value of x, we can substitute it back into the equations for the two unknown angles:
First angle: (x-5) = (28-5) = 23°
Second angle: (3x) = (3*28) = 84°
Therefore, the angle measures of the two unknown angles are approximately 23° and 84°.