SOLUTION: The supplement of an angle is 4 more than twice its complement. Find the measure of the angle.

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Question 217499: The supplement of an angle is 4 more than twice its complement. Find the measure of the angle.
Answer by drj(1380) About Me  (Show Source):
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The supplement of an angle is 4 more than twice its complement. Find the measure of the angle.

Step 1. Supplementary angles means two adjacent angles add up to 180 degrees.

Step 2. Complementary angles means two adjacent angles add up to 90 degrees.

Step 3. Let x be the angle.

Step 4. Let 180-x be its supplementary angle.

Step 5. Let 90-x be its complementary angle.

Step 6. Let 2(90-x) be twice its complement

Step 7. Then, 180-x=4+2(90-x) since the supplement of an angle is 4 more than twice its complement.

Step 8. The following steps will solve the equatio in Step 7.

180-x=4%2B2%2890-x%29

180-x=4%2B180-2x

Add 2x-180 to both sides of the equation.

180-x%2B2x-180=184-2x%2B2x-180

x=4 then 180-x=176 and 90-x=86

Check if 180-x=4%2B2%2890-x%29 in Step 7 is true...176=4%2B2%2A86...which is a true statement.

Step 9. ANSWER: The angle is 4 degrees, its supplement is 176 degrees, and its complement is 86 degrees.

I hope the above steps and explanation were helpful.

For free Step-By-Step Videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Triogonmetry, please visit http://www.FreedomUniversity.TV/courses/Trigonometry.

Also, good luck in your future studies.

Respectfully,
Dr J