$\"\"$

The equation is $\"\"$ .

Apply addition property of equality: If a = b then a + c = b + c.

$\"\"$ (Add 3h to each side)

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

Apply subtraction property of equality: If a = b then a $\"\"$ c = b $\"\"$ c.

$\"\"$ (Subtract b from each side) $\"\"$

Apply commutative property of addition: a + b = b + a.

$\"\"$

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

Apply division property of equality: If a = b then $\"\"$ .

$\"\"$ (Divide each side by 3)

$\"\"$ (Cancel common terms) $\"\"$

The solution of $\"\"$ .