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Tell whether the angles are complementary or supplementary. Then find the value of x.

Tell whether the angles are complementary or supplementary. Then find the value of-example-1
User Shovavnik
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1 Answer

4 votes

Answer:

this one is supplementary and x equals 31

Explanation:

Remember, complementary angles add up to equal 90 degrees whereas supplementary angles add up to equal 180 degrees.

In this case, since your angles together form a straight line, they're supplementary angles. Now, to solve for x:

(3x + 25) + 2x = 180 (step 1: set the equation equal to 180)

5x + 25 = 180 (step 2: combine like terms)

-25 -25 (step 3: subtrace 25, BS)

5x = 155

5x / 5 = 155 / 5 (step 4: divide by 5, BS to get x by itself)

x = 31

User Patrick Ohly
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