$\"\"$

The equation is $\"\"$ .

Distribute terms using distributive property: $\"\"$ .

$\"\"$

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

Add 2.8 to each side.

$\"\"$

Divide each side by 4.

$\"\"$

Check:

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

$\"\"$

The value of $\"\"$ .