$\"\"$

The equation is $\"\"$ .

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

$\"\"$

(Add each side by 4)

$\"\"$

Case 1 Case 2

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

$\"\"$ (Add 2 from each side)

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

$\"\"$

The solutions are (0,0) $\"\"$

Check:

To check, substitute $\"\"$ in the original equation $\"\"$ .

$\"\"$ (Substitute $\"\"$ )

$\"\"$

\ \ \

$\"\"$

The solution set is .(0,0)