Question 256851
 The sum of three times a number and 7 more than the number is the same as the difference between -11 and twice the number. What is the number? 
I have tried:
3x+7=-11-2x
3x+2x=-11-7
x=-18
This is wrong according to my instructor. The answer is actually supposed to be -3. How?
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3 times the number is 3x.
7 more than the number is x+7.
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3x + x+7 = -11-2x
4x+7 = -11-2x
6x = -18
x = -3
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Just some tricky wording.  I don't see what that's supposed to accomplish.