SOLUTION: the sum of six times a number and 9 more than the number is the same difference between -18 and twice the number. What is the number?

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Question 544823: the sum of six times a number and 9 more than the number is the same difference between -18 and twice the number. What is the number?
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
I think you mean:
.
6x -(x+9) = 2x -18
5x + 9 = 2x -18
3x = -27
x = -9
.
Check the answer.
6(-9) - (-9+9) = 2(-9) -18 ??
-54 + 18 = -36
-18 -18 = -36
Correct.
.
Done.