-6.9+a=13.8

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Solution for -6.9+a=13.8 equation: 


Simplifying
-6.9 + a = 13.8

Solving
-6.9 + a = 13.8

Solving for variable 'a'.

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

Add '6.9' to each side of the equation.
-6.9 + 6.9 + a = 13.8 + 6.9

Combine like terms: -6.9 + 6.9 = 0.0
0.0 + a = 13.8 + 6.9
a = 13.8 + 6.9

Combine like terms: 13.8 + 6.9 = 20.7
a = 20.7

Simplifying
a = 20.7

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