The system of equations are
.
Elimination method:
\
----------(1)
----------(2)
To get two equations that contain opposite terms multiply the second equation by 2.
Add the equations to eliminate the x - variable and solve the equation.
\
The resultant equation is
.
Divide each side by negative 4.
\

The value of
substitute in either equation to find x.
First equation:
.


Add 16 to each side.
\

Divide each side by negative 4.
\

The solution is
.