SOLUTION: Please help me solve this equation: {{{-x^4-x+7}}}

Question 29071: Please help me solve this equation:
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Sorry, but you don't have an equation, you have an expression.
Expressions may be simplified or evaluated but cannot be solved.
Equations may be solved if you know what's on the other side of the equals sign. But you'll notice that you don't have any equals sign.
Please re-post as an equation (with an equals sign) and perhaps you can get help in solving it.
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