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Anonymous
5 + -8 = 3 + 12
-3 is not equal to 15
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your expression is this... n+5=3+12 n+5=15 n=10
No, it equals 10.
3 - 8 + 12 = x -5 + 12 = x 7 = x Answer : 7
6 + 12 - 5 = 13
-2 plus 5 equals +3