Find x fothefollowing equation

{2+x}{7-x}{5-x}{4+x}=1

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Solution

I assume that your question is
(2+x)(7-x)/(5-x)(4+x)=1
(2+x)(7-x)=(5-x)(4+x)
14+5x-x²=20+x-x²
4x=6
x=6/4=3/2.

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