12.4+X-8.2=4.5

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Solution for 12.4+X-8.2=4.5 equation: 


Simplifying
12.4 + X + -8.2 = 4.5

Reorder the terms:
12.4 + -8.2 + X = 4.5

Combine like terms: 12.4 + -8.2 = 4.2
4.2 + X = 4.5

Solving
4.2 + X = 4.5

Solving for variable 'X'.

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

Add '-4.2' to each side of the equation.
4.2 + -4.2 + X = 4.5 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + X = 4.5 + -4.2
X = 4.5 + -4.2

Combine like terms: 4.5 + -4.2 = 0.3
X = 0.3

Simplifying
X = 0.3

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