A. Identify the property of equality that justifies the missing steps.
I. Equation:
4x + (x - 9) = 16
4x + x + 9 = 16
5x = 25
x = 5
Associative Property of Equality
1. ?
2.?
II. Equation:
-6 = 2x - 3 (x + 4)
-6 = 2x - 3x - 12
-6 = -x - 12
-6 + 12 = -x
6 = -x
x = -6
Given
3. ?
Combining like terms
4. ?
Simplify
5. ?
Symmetric Property Of Equality
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