$\"subtraction$ $\"\"$

\

The equality is $\"\"$

\

$\"\"$ (Multiply each side by 9)

\

$\"\"$ (Cancel common terms)

\

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

\

Check:

\

To check, substitute $\"\"$ , in $\"\"$ .

\

$\"\"$

\

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

\

The equality solution is $\"\"$ .