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

The given funtion is $\"\"$ and $\"\"$

Compare the above two equations.

We get, $\"\"$

According to subtraction property of equality: Subtract 11 from each side.

$\"\"$ (Subtract 11 from each side)

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

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

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

$\"\"$ (Divide each side by 4)

$\"\"$ (Cancel common terms)

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

The value of $\"\"$ .