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 .