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

\

\

The equation is $\"\"$

\

According to addition property of equality: if $\"\"$ , then $\"\"$ .

\

$\"\"$ (Add 11 to each side)

\

$\"\"$ (Additive inverse property: $\"\"$ )

\

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

\

$\"\"$

\

According to Multiplication property of equality: if $\"\"$ , then $\"\"$ .

\

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

\

$\"\"$ (Cancel common terms)

\

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

\

$\"\"$

\

According to division property of equality: if $\"\"$ , then $\"\"$ .

\

$\"\"$ (Divide each side by 5)

\

$\"\"$ (Cancel common terms)

\

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

\

$\"\"$

\

Check:

\

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

\

$\"\"$

\

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

\

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

\

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

\

Compare the values, the equation is true. The solution is $\"\"$ .

\

$\"\"$

\

The value of $\"\"$ .