$\"\"$

The expression is $\"\"$ . \ \

$\"\"$ (Subtract 6 from each side)

$\"\"$ (Additive inverse property: $\"\"$ )

$\"\"$ (Subtract: $\"\"$ )

$\"\"$ (Cross multiply)

$\"\"$ (Cancel common terms)

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

$\"\"$

Verify:

To check the solution, substitute $\"\"$ in original equation.

$\"\"$

$\"\"$ (Divide: $\"\"$ )

$\"\"$ (Add: $\"\"$ )

Compare the values, the equation is true.

$\"\"$

The value of $\"\"$ .