X-12=31

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Solution for X-12=31 equation: 


Simplifying
X + -12 = 31

Reorder the terms:
-12 + X = 31

Solving
-12 + X = 31

Solving for variable 'X'.

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

Add '12' to each side of the equation.
-12 + 12 + X = 31 + 12

Combine like terms: -12 + 12 = 0
0 + X = 31 + 12
X = 31 + 12

Combine like terms: 31 + 12 = 43
X = 43

Simplifying
X = 43

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