Federico needs to frost 36 cupcakes for a party. He has already frosted 23 cupcakes and wants to know how many more he has to frost. He writes the following two equations to represent the problem, but does not know which equation is correct:

Question

23 + c = 36
36 - c = 23
Which equation should Federico use? Explain why
Explain how you know which operation to use when solving an equation, give an example

Answer 1

What don't you understand about my previous answer for this question?

Answer 2

I just need the equation

Answer 3

I mean which equation, my teacher said I could only use one

Answer 4

I told you both are correct.

23 + c = 36
c = 13

36 - c = 23
-c = -13
c = 13

Answer 5

Thank you

Answer 6

You're welcome.