SOLUTION: if a number is increased by 3 and that number is doubled, the result is -8. What was the original number?

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Question 248950: if a number is increased by 3 and that number is doubled, the result is -8. What was the original number?
Answer by chosenpoint(26) About Me  (Show Source):
You can put this solution on YOUR website!
Let x be the original number.

Then we have

%28x%2B3%29%2A2=-8 given

x%2B3=-8%2F2 divide both sides by 2

x%2B3=-4 simplify

x=-4-3 subtract 3 from both sides

x=-7 simplify and final answer

The original number is -7 :)