X+8.2=12.4

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Solution for X+8.2=12.4 equation: 


Simplifying
X + 8.2 = 12.4

Reorder the terms:
8.2 + X = 12.4

Solving
8.2 + X = 12.4

Solving for variable 'X'.

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

Add '-8.2' to each side of the equation.
8.2 + -8.2 + X = 12.4 + -8.2

Combine like terms: 8.2 + -8.2 = 0.0
0.0 + X = 12.4 + -8.2
X = 12.4 + -8.2

Combine like terms: 12.4 + -8.2 = 4.2
X = 4.2

Simplifying
X = 4.2

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