x - x = ? ( do it and explain )
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0, x and x will cancel
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x - x = 0
Since it is only one variable , that's why we can subtract it where x counts for 1 . It doesn't have any coefficient and that's why it is considered as 1.
Hope it helps you.
Since it is only one variable , that's why we can subtract it where x counts for 1 . It doesn't have any coefficient and that's why it is considered as 1.
Hope it helps you.
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