Question 1177897
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<pre>

Let x be "a number".


Then from the condition, you have this equation


    3x - 11 = (-1)*x - 75      (1)


Simplify and solve for x


    3x - 11 = - x - 75

    3x + x  = 11 - 75

      4x    = - 64

       x    = -64/4 = -16.


<U>ANSWER</U>.  The number is -16.
</pre>

Solved.



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The starting equation was written incorrectly in the post by &nbsp;@MathLover1.


BOTH &nbsp;sides of her starting equation are &nbsp;INCORRECT &nbsp;TRANSLATION 

of the wording condition &nbsp;(of &nbsp;English) &nbsp;to &nbsp;Math.


Thanks to tutor @MathTherapy who noticed this error.



And &nbsp;ONLY &nbsp;BECAUSE &nbsp;she made this error &nbsp;TWICE &nbsp;in &nbsp;BOTH &nbsp;SIDES &nbsp;of the equation, 
her solution was eventually correct.



For your safety, &nbsp;I recommend you to ignore the post by &nbsp;@MathLover1, &nbsp;since it contains 

VERY &nbsp;DANGEROUS &nbsp;errors, &nbsp;wtat may harm your understanding.



Use the correct solution from my post.