Xian makes lemon cakes (m) and chocolate cakes (n) for the school bake sell.

Xian then bakes another batch and now has twice as many chocolate cakes.

Write the total number of cakes Xian made as a algebraic expression.

Let's denote the number of lemon cakes Xian made as "m" and the number of chocolate cakes as "n."

From the given information, the number of chocolate cakes is now twice as many as before, so we can express it as 2n.

To find the total number of cakes Xian made, we can add the number of lemon cakes and the number of chocolate cakes together: m + 2n.

Therefore, the algebraic expression for the total number of cakes Xian made is m + 2n.

Let's break down the problem step by step:

Step 1: Xian makes m lemon cakes and n chocolate cakes for the school bake sale.

Step 2: Xian bakes another batch and now has twice as many chocolate cakes.

Step 3: We need to determine the total number of cakes Xian made.

From step 1, the number of chocolate cakes is n.

From step 2, after baking another batch, Xian now has twice as many chocolate cakes, which means he has 2n chocolate cakes.

The total number of cakes Xian made is the sum of the lemon cakes and the chocolate cakes. So, the algebraic expression is:

Total number of cakes = m + 2n

Therefore, the total number of cakes Xian made can be represented by the algebraic expression m + 2n.