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IF 8x+8y=18 and x^2-y^2=-3/8, what is th...

IF `8x+8y=18` and `x^2-y^2=-3/8`, what is the value of 2x-2y?

A

`-1/3`

B

`-1/6`

C

`1/3`

D

`1/6`

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A
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