SOLUTION: If I subtract 7 from a certain number and multiply the result by 3, my answer is 10 less than twice the certain number. Find the number.

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Question 964381: If I subtract 7 from a certain number and multiply the result by 3, my answer is 10 less than twice the certain number. Find the number.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(X-7)*3=2X-10
3X-21=2X-10
3X-2X=-10+21
X=11 ANS.PROOF:
(11-7)*3=2*11-10
4*3=22-10
12=12