5x(1.3x-10.2x)=46.5快,我急用!

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5x(1.3x-10.2x)=46.5快,我急用!5x(1.3x-10.2x)=46.5快,我急用!5x(1.3x-10.2x)=46.5快,我急用!x=根号下130/2或-根号下130/25x(1.

5x(1.3x-10.2x)=46.5快,我急用!
5x(1.3x-10.2x)=46.5
快,我急用!

5x(1.3x-10.2x)=46.5快,我急用!
x=根号下130/2或-根号下130/2

5x(1.3x-10.2x)=46.5
1.3x-10.2x=46.5/5=9.3
-8.9x=9.3
x=-93/89