$\"\"$

\

The system of equations are $\"\"$ .

\

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

\

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

\

$\"\"$ -------------> (3)

\

Use elimination to make a system of two equations in two variables.

\

Multiply equation (1) by 2.

\

$\"\"$ ------------------> (4)

\

Subtract equations (4) from (2).

\

$\"\"$

\

$\"\"$ --------------> (5) $\"\"$

\

Multiply equation (1) by 3.

\

$\"\"$ ------------------> (6)

\

Subtract equations (6) from (3).

\

$\"\"$

\

$\"\"$ --------------> (7)

\

Subtract equations (7) from (5).

\

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

\

Divide each side by 12.

\

$\"\"$

\

$\"\"$

\

Substitute $\"\"$ value in equation (5).

\

$\"\"$

\

$\"\"$

\

Subtract 4 from each side.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Divide each side by negative one.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Substitute $\"\"$ and $\"\"$ value in equation (1).

\

$\"\"$

\

Product of two different sings is negative.

\

$\"\"$

\

$\"\"$

\

Subtract 2 from each side.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

The values are $\"\"$ .