Sterling Spiral Shell 5 3 4 Vintage Antiques Of River Oaks Ruby Lane Add the product from Step 1 to the numerator 15 + Add 5 to each side of the equation to isolate the s term while keeping the equation balanced 0 5 = 1 4 s − 5 5 5 = 1 4 s − 0 5 = 1 4 s Now, multiply each side of the equation 5+5*5=30