19. ||23|-|-23|| Written Math A. Identify the property illustrated in each mathematical sentence. 21. 51+27=27+51 22. 74+(-74)=0 23. 3+(57+9)=(3+57)+9 24. 8)(9 =

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19. ||23|-|-23|| Written Math A. Identify the property illustrated in each mathematical sentence. 21. 51+27=27+51 22. 74+(-74)=0 23. 3+(57+9)=(3+57)+9 24. 8)(9 = (9) 20. -||-9||49|| 8 9 25. (-83+61)+3=-19 39

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