First, you want to get s by itself To do this, add 15 to both sides s=$15.92+15 s=$30.92 This would be the cost of the shirt, not the pants To find how much the pants cost, you would have to add $5.30 to the cost of the shirt, since the pants cost $5.30 more than the shirt s=$30.92+$5.30 s=$36.22 So the pants cost $36.22