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Q: What is plus 8 plus -7 equal?

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-6 + -7 + -8 = -21

-7+8=1

-7

It is: 9m +8 -4m +7 -5m = 15

15

8

7/8 + 14/8 = 21/8

35

40

The expression is a single number which is equal to 7.

7

it is 7

144

It is the same as: 6/8+7/8 = 13/8 or 1 and 5/8

7/8.

The answer is 52.

8 x 7 + (4/4) = 57

6-2 = 4 8+7 â‰ 3 9+5 = 14

-7

-4 minus 8 plus 5 is equal to -7

The answer is 8/3 plus 5/6 = 7/2

6 and 1 out of2

2 and 2/3 (7/7 = 1 and 8/8 = 1)

8:15

As it appears the only thing it illustrates is the identity property ie anything is equal to itself. If there were brackets: (2 + 8 ) + 7 = 2 + (8 + 7) then that would illustrate the associative property of addition of numbers.