X+(-13)=8

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Solution for X+(-13)=8 equation: 


Simplifying
X + (-13) = 8
X + -13 = 8

Reorder the terms:
-13 + X = 8

Solving
-13 + X = 8

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 = 8 + 13

Combine like terms: -13 + 13 = 0
0 + X = 8 + 13
X = 8 + 13

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

Simplifying
X = 21

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