SOLUTION: When a number is subtracted from 63 and the result is divided by 4.The answer obtained is twice the original number. Find the number.

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Question 1024746: When a number is subtracted from 63 and the result is divided by 4.The answer obtained is twice the original number. Find the number.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = the unknown number
+%28%28+63+-+x+%29%29+%2F4+=+2x+
Multiply both sides by +4+
+63+-+x+=+8x+
Add +x+ to both sides
+63+=+9x+
Divide both sides by +9+
+7+=+x+
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The unknown number is 7
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check answer:
When a number is subtracted from 63
+63+-+7+=+56+
and the result is divided by 4
+56%2F4+=+14+
The answer obtained is twice the original number
+14+=+2%2A7+
OK