exercise1. 5+w exercise2. -1/3 + b exercise3. r(2) exercise4. a(-4) exercise5. xy

exercise6. 7 - p

apply the commutative property of addition or multiplication

1. 5+w=w+5

2. -1/3+b= b-1/3

3. r(2)=2(r)

4. a(-4)= -4(a)

5. xy=yx

6. 7-p = -p+7

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