Marcie's guests and family ate a total of 23 + 14 = <<23+14=37>>37 cake.
Therefore, 37 cake was eaten and there was 41 - 37 = <<41-37=4>>4 cake left before the party. Answer: \boxed{4}.
At her birthday party, Marcie's guests ate 23
of her birthday cake, and her family ate 14
of the cake. How much cake was left after her party?
1 answer