Question

x-y=6,x+y=2 what is the value of x and y​

Answer 1

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Given ,

$x - y = 6 \\ \\ = > x = 6 + y$

Now putting back the value of x in x + y = 2

$x + y = 2 \\ \\ = > 6 + y + y = 2 \\ \\ = > 6 + 2y = 2 \\ \\ = > 2y = 2 - 6 \\ \\ = > 2y = - 4 \\ \\ = > y = \frac{ - 4}{2} \\ \\ = > y = - 2$

Now again putting back the value of y in x = 6 + y

$x = 6 + y \\ \\ = > x = 6 + ( - 2) \\ \\ = > x = 6 - 2 \\ \\ = > x = 4$

So x = 4 and y = ( - 2 )

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