Question

penas um valor de x torna a igualdade verdadeira.Descubra qual é 3x-5 - x+5 =4
2 3

Answer 1

$\frac{3x-5}{2} - \frac{x-5}{3} =4\to mmc=6\\\\ \frac{9x-15-2x-10}{6} = \frac{24}{6} \to \\\\9x-15-2x-10=24\to \\\\ 9x-2x=24+15+10\to \\\\ 7x=49\to \\\\ x= \frac{49}{7} \to \\\\ x=7$


R.: S={7}