$\"\"$

\

The equation is $\"\"$ .

\

Apply distributive property: $\"\"$ .

\

$\"\"$

\

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

\

$\"\"$ (Apply distributive property: $\"\"$ )

\

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

\

$\"\"$ (Subtract 12c from each side)

\

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

\

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

\

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

\

$\"\"$

\

$\"\"$ (Add 14 to each side)

\

$\"\"$ (Apply commutative property: $\"\"$ )

\

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

\

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

\

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

\

$\"\"$

\

$\"\"$ (Divide each side by negative 26)

\

$\"\"$ (Cancel common terms)

\

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

\

Check:

\

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

\

$\"\"$ (Substitute $\"\"$ )

\

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

\

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

\

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

\

The equation is true. $\"\"$

\

The value of $\"\"$ .