X+(11-20)=-40

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Solution for X+(11-20)=-40 equation: 


Simplifying
X + (11 + -20) = -40

Combine like terms: 11 + -20 = -9
X + (-9) = -40
X + -9 = -40

Reorder the terms:
-9 + X = -40

Solving
-9 + X = -40

Solving for variable 'X'.

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

Add '9' to each side of the equation.
-9 + 9 + X = -40 + 9

Combine like terms: -9 + 9 = 0
0 + X = -40 + 9
X = -40 + 9

Combine like terms: -40 + 9 = -31
X = -31

Simplifying
X = -31

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