$\"\"$ $\"\"$

The equation is $\"\"$

$\"\"$ (Divide each side by $\"\"$ )

$\"\"$ (Cancel common terms)

$\"\"$ (Divide: $\"\"$ , use calculator) $\"\"$

Check:

Substitutive the value $\"\"$ on original equation

$\"\"$

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

The solution $\"\"$ .