$\"\"$

The two points are $\"\"$ and the slope is $\"\"$ .

Substitute the values of $\"\"$ in the slope formula $\"\"$ .

$\"\"$

$\"\"$ .

Multiply each side by $\"\"$ .

$\"\"$

Cancel common terms.

$\"\"$ . $\"\"$

Add 3 to each side.

$\"\"$

Divide each side by negative 7.

$\"\"$

Cancel common terms.

$\"\"$ . $\"\"$

The value of $\"\"$ .