X+8-21=2

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Solution for X+8-21=2 equation: 


Simplifying
X + 8 + -21 = 2

Reorder the terms:
8 + -21 + X = 2

Combine like terms: 8 + -21 = -13
-13 + X = 2

Solving
-13 + X = 2

Solving for variable 'X'.

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

Add '13' to each side of the equation.
-13 + 13 + X = 2 + 13

Combine like terms: -13 + 13 = 0
0 + X = 2 + 13
X = 2 + 13

Combine like terms: 2 + 13 = 15
X = 15

Simplifying
X = 15

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