Respuesta :
x = The original price.
[tex]\displaystyle x\cdot \frac{30}{100} = 126 \\\\ \frac{3x}{10}=126\\\\3x=1260\\\\x=420 [/tex]
[tex]\displaystyle x\cdot \frac{30}{100} = 126 \\\\ \frac{3x}{10}=126\\\\3x=1260\\\\x=420 [/tex]