-X-3=11

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Solution for -X-3=11 equation: 


Simplifying
-1X + -3 = 11

Reorder the terms:
-3 + -1X = 11

Solving
-3 + -1X = 11

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '3' to each side of the equation.
-3 + 3 + -1X = 11 + 3

Combine like terms: -3 + 3 = 0
0 + -1X = 11 + 3
-1X = 11 + 3

Combine like terms: 11 + 3 = 14
-1X = 14

Divide each side by '-1'.
X = -14

Simplifying
X = -14

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