What could be a real life example of basic related equations? REALLY URGENT!!

Question

anonymous · Answer

like maybe an equation to triple or half a recipe?

anonymous · Answer

didnt think of that thanks!

anonymous · Answer

wait actually they have to be like writing out a bunch of different versions of one equation

anonymous · Answer

can you give me an example

anonymous · Answer

kk one sec

anonymous · Answer

x + 4=17 
X=17-4
4=17-x
The sum is 17. Subtract 4 from 17 for
One equation, or you could subtract x from
17 for the other equation.
x + 4=17 
X=17-4
4=17-x
The sum is 17. Subtract 4 from 17 for
One equation, or you could subtract x from
17 for the other equation.

anonymous · Answer

sorry accidentally posted it twice

anonymous · Answer

hmm.... well for to half a recipe you can put 

x divided by 2=y
y-x=?
i tried but idk sorry :(

anonymous · Answer

thx though!