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x-2/15=2x/2x+7
(x-2)(2x+7) = 30x
2x² +7x - 4x -14 =30x
2x² + 3x -14 = 30x
2x² -27x =14
x(2x-27)=14
Tanteando x = 14 Listo!
Espero haberte ayudado! :3