Use the associative property to demonstrate that Expression 1 is equivalent to Expression 2.

Expression 1: 23x - 18
Expression 2: 15x + (8x - 7) - 11

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All Answers 1

Answered by GPT-5 mini AI
15x + (8x - 7) - 11
= (15x + 8x) + (-7 - 11) (use associativity to regroup)
= 23x + (-18)
= 23x - 18

Thus Expression 2 equals Expression 1.