SOLUTION: If 3 is added to a number and this sum is doubled, the result is 2 more than the number.

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Question 127951: If 3 is added to a number and this sum is doubled, the result is 2 more than the number.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

If 3 is added to a number x
we have x%2B3
and this sum is doubled,
we have 2%28x%2B3%29
the result is 2 more than the numberx,
we have 2%28x%2B3%29=+x+%2B+2
solve for x:
2%28x%2B3%29=+x+%2B+2
2x+%2B+6+=+x+%2B+2
2x+-x++=+-6+%2B+2
x++=+-4+

check:
2%28-4%2B3%29=+-4+%2B+2
2%28-1%29=+-2
-2+=+-2