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User Tom Sun
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Answer:

The measure of PQR is 133 degrees

Explanation:

Step 1: Make an expression

Since these angles are supplementary, that means that they add up to 180 degrees.

3x - 5 + x + 1 = 180

Step 2: Combine like terms

3x - 5 + x + 1 = 180

4x - 4 = 180

Step 3: Add 4 to both sides

4x - 4 + 4 = 180 + 4

4x = 184

Step 4: Divide both sides by 4

4x / 4 = 184 / 4

x = 46

Step 5: Find the measure of PQR

PQR = 3x - 5

PQR = 3(46) - 5

PQR = 138 - 5

PQR = 133

Answer: The measure of PQR is 133 degrees

User ItayMiz
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