a+3.8=12.4

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Solution for a+3.8=12.4 equation: 


Simplifying
a + 3.8 = 12.4

Reorder the terms:
3.8 + a = 12.4

Solving
3.8 + a = 12.4

Solving for variable 'a'.

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

Add '-3.8' to each side of the equation.
3.8 + -3.8 + a = 12.4 + -3.8

Combine like terms: 3.8 + -3.8 = 0.0
0.0 + a = 12.4 + -3.8
a = 12.4 + -3.8

Combine like terms: 12.4 + -3.8 = 8.6
a = 8.6

Simplifying
a = 8.6

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