X-12=3-8

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Solution for X-12=3-8 equation: 


Simplifying
X + -12 = 3 + -8

Reorder the terms:
-12 + X = 3 + -8

Combine like terms: 3 + -8 = -5
-12 + X = -5

Solving
-12 + X = -5

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 = -5 + 12

Combine like terms: -12 + 12 = 0
0 + X = -5 + 12
X = -5 + 12

Combine like terms: -5 + 12 = 7
X = 7

Simplifying
X = 7

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