Question

15.(-2+ 5 )+7=-2 + (5 + 7)​

Answer 1

Answer:

.(-2+ 5 )+7=-2 + (5 + 7)

3+7=-2+12

10=10

Answer 2

As associative property is used here ,we get the answer as,

3+7= -2+12

10=10

Step-by-step explanation:

hope the above answer helps.