Question

sacar el valor de x
$4 + \frac{2}{5} x = 5$
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Answer 1

Despejar x

$4+\frac{2}{5} x=5\\\\\frac{2}{5} x=5-4\\\\\frac{2}{5} x=1\\\\x=\frac{1}{\frac{2}{5} } \\\\x=\frac{5}{2}$Respuesta

Comprobación

$4+(\frac{2}{5} )(\frac{5}{2} )=5\\\\4+1=5\\\\5=5$