x²-(x+5)(x-5)÷x-5=3/7
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x^2-(x^2-5^2)/x-5=3/7
X^2-(x^2-25)=3x-15/7
x^2-x^2+25=3x-15/7
25=3x-15/7
175=3x-15
190=3x
X=190/3
x=63.333
X^2-(x^2-25)=3x-15/7
x^2-x^2+25=3x-15/7
25=3x-15/7
175=3x-15
190=3x
X=190/3
x=63.333
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