The equations of linear system are
.
Since the coefficient of the y - term in two equations is same. So, eliminate these terms by subtracting the equations.
\Write the equations in column form and subtract to eliminate variable y.
\
.
The resultant equation is
and solve it for x.
Divide each side by 2.
\
Cancel common terms.
\
.
Substitute the value of
in either original equation and solve for y.
Equation 2:
Subtract 10 from each side.
\
.
The solution is
.