Question 821429
The 3 angles of a triangle are (2x+5), (x-10) and 65. 
Find the size of each angle.
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The sum of the angles is 180.
2x+5 + x-10 + 65 = 180
3x + 60 = 180
3x = 120
x = 40
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2x+5 = 2*40+5 = 85 degrees
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x-10 = 30 degrees
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65 = 65 degrees
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Cheers,
Stan H.
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