Question

You need to make 18 cupcakes for a birthday party. You have already made 11. How many more cupcakes do you need to make? Write an equation and solve.

Answer 1

Answer: 7 more cupcakes.

Answer 2

18 - 11
= 7

11 + x = 18
Solve for x.

x+11=18

Subtract 11 from both sides.

x+11−11=18−11

You get 7

7 cupcakes.
Hope this helps.