Question

valor de x en : 3x-2/10=4x+5/2 ?

Answer 1

$3x - \frac{2}{10} = 4x + \frac{5}{2} \\ \\ - \frac{2}{10} - \frac{5}{2} = 4x - 3x \\ \\ \frac{ - 2}{10} - \frac{5 \times 2}{2 \times 5} = x \\ \\ \frac{ - 2}{10} - \frac{10}{10} = x \\ \frac{8}{10} = x \\ \frac{4}{5} = x$