X-42.3=28.8

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Solution for X-42.3=28.8 equation: 


Simplifying
X + -42.3 = 28.8

Reorder the terms:
-42.3 + X = 28.8

Solving
-42.3 + X = 28.8

Solving for variable 'X'.

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

Add '42.3' to each side of the equation.
-42.3 + 42.3 + X = 28.8 + 42.3

Combine like terms: -42.3 + 42.3 = 0.0
0.0 + X = 28.8 + 42.3
X = 28.8 + 42.3

Combine like terms: 28.8 + 42.3 = 71.1
X = 71.1

Simplifying
X = 71.1

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