The equations of linear system are
.
Since the coefficient of the x - terms in two equations,
are additive inverse. So, eliminate these terms by adding the equations.
Write the equations in column form and add to eliminate variable x.
\
.
The resultant equation is
and solve it for y.


Multiply each side by negative 2.
\
Cancel common terms.
\
.
Substitute the value of
in equation 2:
and solve for x.

Add 14 to each side.
\

.
The solution is
.