Question

what is an equation that equals 24 (example 3x+4y=19 ) don't use that as an answer but what is an real equation that equals 24?

Answer 1

12=-12+x

or are you looking for something like you provided us in your question
"(example 3x+4y=19 )"

Answer 2

3x=72

2x=48

4x+4=100

8x-31=161. Hope it help!