X-3.5=12.8

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Solution for X-3.5=12.8 equation: 


Simplifying
X + -3.5 = 12.8

Reorder the terms:
-3.5 + X = 12.8

Solving
-3.5 + X = 12.8

Solving for variable 'X'.

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

Add '3.5' to each side of the equation.
-3.5 + 3.5 + X = 12.8 + 3.5

Combine like terms: -3.5 + 3.5 = 0.0
0.0 + X = 12.8 + 3.5
X = 12.8 + 3.5

Combine like terms: 12.8 + 3.5 = 16.3
X = 16.3

Simplifying
X = 16.3

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