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

The equation is $\"\"$ .

$\"\"$ (Distribute 4)

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

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

$\"\"$

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

Apply addition property of equality: Add 3r to each side.

$\"\"$

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

$\"\"$

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

The equality is false. $\"\"$

The equation has no solution.