Solve (x-y)-y+4=0 x=0
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KhushiD:
answer is y=2
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if x = 0
then , (0-y)-y= -4
(-y)2=-4
y2=-4
y= root over -4
-> -4 does'nt have any root .
then , (0-y)-y= -4
(-y)2=-4
y2=-4
y= root over -4
-> -4 does'nt have any root .
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