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)
Multiply equation (3) by 2.
\
--------------> (7)
Subtract equations (6) and (7).
\
--------------> (8)
Multiply equation (5) by 4.
\
--------------> (7)
Subtract equations (7) from (8).
\
Divide each side by 27.
\


Substitute
value in equation (8).

Subtract 2 from each side.
\


Divide each side by negative 8.
\


Substitute
value in equation (1).

Subtract 10 from each side.
\


Divide each side by 2.
\

The values are
.