$\"\"$

\

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

\

The given equation is $\"\"$ .

\

Apply addition property of equality: Add 9 to each side.

\

$\"\"$

\

$\"\"$ (Apply additive inverse property: $\"\"$ )

\

$\"\"$ (Add: $\"\"$ ) $\"\"$

\

Apply division property of equality: Divide each side by 4.

\

$\"\"$

\

$\"\"$ (Cancel common terms)

\

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

\

Check:-

\

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

\

$\"\"$

\

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

\

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

\

Hence the solution is true. $\"\"$

\

The solution is $\"\"$ .