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-15. The rule is 'subtracting a positive is the same as adding a negative'
9 - 6 = 3
27 - 9 - 6 = 12
It is 9*6 minus 7 = 47
-9
-9 - 6 = -15
15 - 6 = 9 13 - 9 = 4 Therefore, 15 - 6 = 13 - 4.
6/9 minus 6/9 = Zero.
It is -6 minus -9 = +3. That's because minus -9 is the same as +9.
15 - 9 = 6
9 - 3 = 6
15
5 x 6 - 9 - 4 = 17
negative 9