11+X=20

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Solution for 11+X=20 equation: 


Simplifying
11 + X = 20

Solving
11 + X = 20

Solving for variable 'X'.

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

Add '-11' to each side of the equation.
11 + -11 + X = 20 + -11

Combine like terms: 11 + -11 = 0
0 + X = 20 + -11
X = 20 + -11

Combine like terms: 20 + -11 = 9
X = 9

Simplifying
X = 9

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