Explain the difference between the associative addition and the commutative addition

Associative states you can regroup numbers and you will get the same answer and the commutative property states that you can move numbers around and still have the same answer.

Example:

Commutative a+b=b+a

Associative a+ (b+c) = (a+b) +c= a+b+c

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

i dont know if you cant find a way its best to actually add all of them start from 105 tho

step-by-step explanation: