Last month, Sarah sold 3 sweatshirts for every 2 that Clay sold. Overall, Sarah sold 10 more sweatshirts than Clay. What was the total number of sweatshirts sold last month?
3 + 2 = 5
10 x 5 = 50
50 sweatshirts
sold by Sarah ---- 3x
sold by Clay --- 2x
3x-2x = 10
x = 10
total sold = 5x = 50