The equations of linear system are
.
Since the coefficient of the x - term in two equations is same. So, eliminate these terms by subtract the equations.
\Write the equations in column form and subtract to eliminate variable x.
\
.
The resultant equation is
and solve it for y.
Divide each side by negative 4.
\
Cancel common terms.
\
.
Substitute the value of
in equation 1:
and solve for x.

Add 5 to each side.
\

Divide each side by 2.
\
.
The solution is
.