X+3+5=12

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Solution for X+3+5=12 equation: 


Simplifying
X + 3 + 5 = 12

Reorder the terms:
3 + 5 + X = 12

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

Solving
8 + X = 12

Solving for variable 'X'.

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

Add '-8' to each side of the equation.
8 + -8 + X = 12 + -8

Combine like terms: 8 + -8 = 0
0 + X = 12 + -8
X = 12 + -8

Combine like terms: 12 + -8 = 4
X = 4

Simplifying
X = 4

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