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

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