$\"\"$

The equation is $\"\"$ .

According to addition property of equality: if a = b, then a + c = b + c.

$\"\"$ (Add 9 to each sides).

$\"\"$ (Commutative property: a + b = b + a)

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

$\"\"$ (Add: 5 + 9 = 14) \ \

$\"\"$

According to multiplication property of equality:

For any number a, b and c, If a = b then ac = bc.

$\"\"$ (Multiply each side by - 4.)

$\"\"$ (Cancel common factors)

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

$\"\"$

Check:

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

$\"\"$

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

5 = 5 (Add: $\"\"$ )

Compare the values, the equation is true.

$\"\"$

The value of $\"\"$ .