$\"\"$

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

Rewrite the equations $\"\"$ .

$\"\"$ (From equation (2))

$\"\"$ (Divide each side by negative 2)

y = 4 (Simplify) $\"\"$

$\"\"$ (Substitute the value y = 4 in equation (1))

$\"\"$ (Subtract 20 from each side)

$\"\"$ (Simplify)

$\"\"$ (Divide each side by 4)

$\"\"$ (Simplify) $\"\"$

The solution of the system is $\"\"$ and y = 4.

The solution write as the ordered pair $\"\"$ .