X-2-1=

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Solution for X-2-1= equation: 


Simplifying
X + -2 + -1 = 0

Reorder the terms:
-2 + -1 + X = 0

Combine like terms: -2 + -1 = -3
-3 + X = 0

Solving
-3 + X = 0

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 + X = 0 + 3

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

Combine like terms: 0 + 3 = 3
X = 3

Simplifying
X = 3

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