Question 298121
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Let *[tex \Large x] represent the number.  The sum of the number and six: *[tex \Large x\ +\ 6].  The sum of the number and six doubled.  *[tex \Large 2x\ +\ 12].
"Is" means equals.  Nine less than the number *[tex \Large x\ -\ 9]


So,

*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 2x\ +\ 12\ =\  x\ -\ 9]


Solve for *[tex \Large x]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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