$\"\"$

The equation is $\"\"$ .

(Apply addition property of equality: If a = b, then a + b = b + a)

$\"\"$ (Add 5.3 to each side)

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

$\"\"$

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

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

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

Check:

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

$\"\"$

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

The equality is true. $\"\"$

The value of $\"\"$ .