Elimination method:

$\"\"$ ---------->( 1 )

$\"\"$ ---------->( 2 ) \ \

To eliminate the value subtract (2 ) from ( 1 ).

$\"\"$

___________

~~$\"\"$~~

Divide each side by -4.

~~$\"\"$~~

Cancel common terms.

~~$\"\"$~~

Substitute the value $\"\"$ in ( 1).Add 2 to each side. \ \

$\"\"$

Add 2 to each side.

$\"\"$

Solution $\"\"$ , $\"\"$ .