Please help me in this problem
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Please help me in this problem

[From: ] [author: ] [Date: 12-02-21] [Hit: ]
...-3(-3+x-y)solve it.........
.........__
-3(-3+x-y)

solve it......
when x=-2 & y=1...
there is bar (vinculum) on "x-y

-
-3( -3 - 2 -1)
-3(-6)
+18

-
-3[ -3 - 2 -1]
-3[-6]
= + 18
:)
1
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