Question

if 2(x+y)=2(x-y)= root 8 then find the value of y.

Answer 1

HEY MATE HERE IS YOUR ANSWER

$2(x + y) = \sqrt{8} \\ 2x + 2y = 2 \sqrt{2} = = = > (1)eq$
$2(x - y) = \sqrt{8} \\ 2x - 2y = 2 \sqrt{2} = = = > (2)eq$
by adding 1 eq and 2 eq
$2x + 2y + 2x - 2y= 2 \sqrt{2} + 2 \sqrt{2} \\ 4x = 4 \sqrt{2} \\ x = \sqrt{2}$
substitute the value of x in 1 or 2 eq

$2( \sqrt{2} ) + 2y = 2 \sqrt{2} \\ 2y = 2 \sqrt{2} - 2 \sqrt{2} \\ y = 0$

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Answer 2

Here is the solution !