$\"\"$

Elimination Method:

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

$\"\"$ Equation (1)

$\"\"$ Equation (2)

Since the coefficients of y-terms are additive inverses, these terms can be eliminated by subtracting equations. Write the equations in column form and subtract the corresponding columns.

$\"\"$ $\"\"$

Multiply each side by negative 8.

$\"\"$

Find the y, substitute $\"\"$ in second equation.

$\"\"$

$\"\"$ $\"\"$

Subtract 10 from each side.

$\"\"$

Multiply each side by negative 4.

$\"\"$

The solution of the system is $\"\"$ .