Seven times a number is subtracted from 15. The result is 42

Question

Seven  times a number is subtracted from 15. The result is 42

zepdrix · Answer

7x     <-- 7 times a number
15-7x  <-- is subtracted from 15
15-7x=42 <-- and the result is 42

make sense? :D

anonymous · Answer

@zepdrix gave a solid solution, but it's not in the generalized form. Here's the universal relation: http://www.wolframalpha.com/input/?i=the+answer+to+life%2C+the+universe+and+everything

zepdrix · Answer

lololol

anonymous · Answer

to find x then I would need to undo each side?

anonymous · Answer

Seven times a number is subtracted from 15. The result is the answer to life, the universe, and everything.

zepdrix · Answer

yah you need to get the x term alone c: requires a lil bit of math
there is a positive 15 on the left, subtract 15 from both sides and that will deal with move one of the items to the other side, bringing you closer to solving for x.

hope that makes sense c:
just post if yer still stuck.

anonymous · Answer

yes it does...I thougt so.... ty