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24 September, 06:16

Given: m ZADE = 60° and m2CDF = (3x + 15)

Prove: x = 15

What is the missing statement and the missing reason in

step 5?

Statements

1. MZADE - 60°

m2CDF - (3x+15)

2. ZADE and 2CDF are vert. Es

3. ZADE = 2CDF

4. MZADE = m2CDF

5.?

6. 45 - 3x

7. 15-X

Reasons

1. given

2. def. of vert. Es

3. vert 25

4. def. of a

5.?

6. subtr. prop

| 7. div. prop

(3x + 15)

Statement 60 = 3x + 15 Reason: substitution

Statement x = 15 Reason: subtraction property of

equality

Statement 60 = 3x + 15, Reason: transitive property

Statement x = 15, Reason: subtraction and division

properties of equality

+3
Answers (1)
  1. 24 September, 06:42
    0
    Answer: The answer is x=15
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