0
Anonymous
i could answer you..... but i have no clue what you mean!!
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3 + -9 = 3 - 9 = -6 (negative 6)
-15
-9 - (-3) is the same as -9 + 3 which is -6 -9 - -3= -6
3
9. -6+6=0 0+3=3 therefore -6+9=3