Consider the circuit shown with $V_1 = 5 V$, $R_1 = 39 k\Omega$, $R_2 = 74 k\Omega$, $R_3 = 24 k\Omega$ and $R_4 = 39 k\Omega$.

$V_2 =$ $V$
$V_o =$ $V$
$i_3 =$ $mA$
$i_{out} =$ $mA$
$A_{gain} = V_o / V_1 =$