SOLUTION: How do you solve: angle ABD and angle BDE are supplementary. Find the measure of both angles. The problem is... Angle ABD=(3x12), angle BDE=(7x-32)

Question 494025: How do you solve: angle ABD and angle BDE are supplementary. Find the measure of both angles. The problem is... Angle ABD=(3x12), angle BDE=(7x-32)
Answer by cleomenius(959) (Show Source): You can put this solution on YOUR website!
I didn't know if the first angle was 3x + 12 or 3x - 12, so I worked it out both ways.
3x + 12 + 7x - 32 = 180
10x - 20 = 180
10x = 200.
x = 20
(20)3 = 60 + 12 = 72
(20)7 = 140 - 32 = 108
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3x - 12 + 7x - 32 = 180
10x - 44 = 180
10x = 224
x = 22.4
3(22.4) = 67.2 - 12 = 55.2
7(22.4) = 156.8 - 32 = 124.8
======================================
Cleomenius.
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