$\"\"$

Elimination method:

The system of equations are $\"\"$ and $\"\"$ .

In the system of the equations, coefficients of $\"\"$ - variable are same.

Subtract the equations to eliminate the $\"\"$ - variable and solve the equation.

$\"\"$ \ \

$\"\"$ .

$\"\"$

Find $\"\"$ .

$\"\"$ (First equation)

$\"\"$ (Substitute $\"\"$ in the equation)

$\"\"$ (Multiply)

$\"\"$ (Add $\"\"$ to each side)

$\"\"$ (Apply additive inverse property: $\"\"$ )

Therefore, the solution is $\"\"$ and $\"\"$ .

$\"\"$

$\"\"$ .