SOLUTION: In triangles m<Q=(7x) degrees, m<R=(12x+20) degrees, and m<S=(20x-35) degrees. How do I find m<R????

Question 696275: In triangles m How do I find m
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
In triangles m How do I find m ----------------------
In triangles Q= 7x degrees, R= 12x+20 degrees, and S= 20x-35 degrees.
How do I find R???? One ? is sufficient.
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The sum of the 3 angles is 180 degs
7x + 12x+20 + 20x-35 = 180
39x - 15 = 180
39x = 195
x = 5
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R = 12x + 20 = 12*5 + 20
R = 80 degs

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