Question

help me..............
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Answer 1

this is very easy ques.

Answer 2

${x }^{2} - xy + y = 5 \\ putting \: x = 2 \\ ( {2)}^{2} - 2y + y = 5 \\ 4 - y = 5 \\ - y = 5 - 4 \\ - y = 1 \\ y = - 1$

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