SOLUTION: Eight is added to a number and the sum is double, the result is -11 less than the number. find the number.

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Question 495103: Eight is added to a number and the sum is double, the result is -11 less than the number. find the number.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
Eight is added to a number and the sum is double, the result is -11 less than the number. find the number.
let number be x
Eight is added to a number: x%2B8
and the sum is double:2%28x%2B8%29
the result is -11+less than the number:2%28x%2B8%29=x-%28-11%29
2x%2B16=x%2B11
2x-x=-16%2B11
highlight%28x=-5%29
check:
%28-5%2B8%292=-5-%28-11%29
6=-5%2B11

6=6