$\"\"$

The literal equation is $\"\"$ and specific equation is $\"\"$ .

First solve the literal equation $\"\"$ for x.

Subtract b from each side.

$\"\"$

Multiply each side by a.

$\"\"$

Cancel common terms.

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

Next use the above solution to solve $\"\"$ .

Substitute the values of $\"\"$ in the solution of literal equation $\"\"$ .

$\"\"$

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

The solution of $\"\"$ is 28.