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

The equation is $\"\"$ .

According to addition property of equality: Add $\"\"$ to each side.

$\"\"$

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

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

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

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

The solution is $\"\"$ .