Question

Ayuda porfa Ecuacion con Compobrante:
5 - 3x = 7x - 3

Answer 1

Respuesta:

$5 - 3x = 7x - 3\\\\-3x - 7x = -3 - 5\\\\-10x=-8\\\\x=\frac{-8}{-10}=\frac{4}{5}$

Comprobación:

$5 - 3x = 7x - 3\\\\5-3(\frac{4}{5})=7(\frac{4}{5})-3\\\\ 5-\frac{12}{5}=\frac{28}{5}-3\\\\ \frac{25}{5}-\frac{12}{5}=\frac{28}{5}-\frac{15}{5}\\\\ \frac{25-12}{5}=\frac{28-15}{5}\\\\ \frac{13}{5} = \frac{13}{5}$