$\"\"$

The proportion is $\"\"$ .

Multiply each side by $\"\"$ .

$\"\"$

Cancel common terms.

$\"\"$

Add 4 to each side.

$\"\"$

$\"\"$ . $\"\"$

To check the solution, substitute the value of $\"\"$ in the proportion $\"\"$ .

$\"\"$

Cancel common terms.

$\"\"$ .

The above statement is true. $\"\"$

The value of $\"\"$ .