0
Anonymous
7
Mabelle McDermott ∙
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7 - 0 = 7.
That is because 0 is the additive identity for numbers.
Wiki User
Zero has no number quality, so ) divided by any number is 0.
minus 7 +7 =0 -7+7=0
16
4x+7=9x+7 -5x=0 x=0