Elimination Method:
The system of equations are
\ (Equation 1)
(Equation 2)
Neither variable has a common coefficient.The coefficient of the u - variables are and their least common multiply is
,so multiply each equation by the values
that will make the u - coefficient
.
Add the equations to eliminate u - variable.
\Write the equations in column form and add the corresponding columns.
\\
The result value is .
Now, find the u value by substitute in either equations.
(Write equation 1)
(Subtract
from each side)
(Divide each side by
)
(Substitute
)
(Simplify)
To check the solutions,the values of u and v are substitute in system of equations.
\ (Write original equation 1)
(Substitute values of u and v)
(Equation 1 checks)
(Write original equation 2)
(Substitute values of u, v)
(Equation 2 checks))
The solutions are .