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

\

The equations are

\

$\"\"$ (equation 1)

\

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

\

Since $\"\"$

\

Rewrite the first equation for x.

\

$\"\"$

\

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

\

$\"\"$ (Commutative property: $\"\"$ )

\

$\"\"$ (Additive inverse property: $\"\"$ )

\

$\"\"$ (Additive identity property: $\"\"$ ) $\"\"$

\

Now Substitute $\"\"$ for y in either equation to find the value of x.

\

$\"\"$ (equation 1)

\

$\"\"$ (replace $\"\"$ )

\

$\"\"$ (Distributive property: $\"\"$ )

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Commutative property: $\"\"$ ) $\"\"$

\

$\"\"$ (Subtract: $\"\"$ )

\

$\"\"$ (Add 6 to each side)

\

$\"\"$ (Additive inverse property: $\"\"$ )

\

$\"\"$ (Additive identity property: $\"\"$ )

\

$\"\"$ (Add: $\"\"$ ) $\"\"$

\

$\"\"$ (Divide each side by 3)

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Divide: $\"\"$ ) $\"\"$

\

Now $\"\"$

\

$\"\"$ (replace x by 5)

\

$\"\"$ (Subtract: $\"\"$ )

\

The solution is $\"\"$ $\"\"$

\

The solution is $\"\"$ .