Step Justification
Identify the missing justifications
2x - 7 = 15
Given
(a) =
2x - 7 + 7 = 15 + 7
Addition property of
equality
(b) =
2x + 0 = 22
(a)
DONE
2x = 22
Additive identity
(9) () 22
(b)
1x = 11
Multiplicative inverse
X= 11
Multiplicative identity
ET
Intro

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