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What is the value of x? Identify the missing justifications

What is the value of x? Identify the missing justifications-example-1
User Ashique
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1 Answer

3 votes

Answer:

B. Angle Addition Postulate; Subtraction Property of Equality

Explanation:

Given:


m\angle PQR=x+7\\ \\m\angle SQR=x+3\\ \\m\angle PQR+m\angle SQR=m\angle PQS=100^(\circ)

Find: x

Solution:

1.
m\angle PQR+m\angle SQR=m\angle PQS - Angle Addition Postulate

2.
x+7+x+3=100 - Substitution Property

3.
2x+10=100 - Simplify

4.
2x=90 - Subtraction Property of Equality

5.
x=45 - Division Property of Equality

User Tozka
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