2a-20.4=

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Solution for 2a-20.4= equation: 


Simplifying
2a + -20.4 = 0

Reorder the terms:
-20.4 + 2a = 0

Solving
-20.4 + 2a = 0

Solving for variable 'a'.

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

Add '20.4' to each side of the equation.
-20.4 + 20.4 + 2a = 0 + 20.4

Combine like terms: -20.4 + 20.4 = 0.0
0.0 + 2a = 0 + 20.4
2a = 0 + 20.4

Combine like terms: 0 + 20.4 = 20.4
2a = 20.4

Divide each side by '2'.
a = 10.2

Simplifying
a = 10.2

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