$\"\"$

The equation is $\"\"$ .

Solve by algebraically.

Apply subtraction property of equality: Subtract 2 from each side.

$\"\"$

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

$\"\"$

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

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

Apply division property of equality: Divide each side by negative 5.

$\"\"$

$\"\"$ (Cancel common terms)

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

The solution is 5. $\"\"$

The root of the equation $\"\"$ is 5.