What is the missing statement and the missing reason in Given: m Prove: x = 15
step 5?
Reasons
1
given
Statements
1. M m 2. 3. 4. M 5. ?
6.45 - 3x
7. 15=X
(3x + 15)
2
3
4
5
6
7
def. of vert. vert. def of ≈
?
subtr. prop
div. prop
60°
B
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