Answer
5.91
Work Step by Step
Since this is a calculator question, many calculators have programs (like nSolve and FSOLVE) to solve equations.
However, let us do this by solving for the variable, and then plugging that expression into the calculator.
$3.2x+\frac{21.3}{65.871}=19.23$
Subtracting $\frac{21.3}{65.871}$ from each side.
$3.2x=-\frac{21.3}{65.871}+19.23$
Then we divide both sides by 3.2,
$x=(-\frac{21.3}{65.871}+19.23)/3.2$
Plugging this into the calculator gives
5.91
