a-12.9=29.4

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Solution for a-12.9=29.4 equation: 


Simplifying
a + -12.9 = 29.4

Reorder the terms:
-12.9 + a = 29.4

Solving
-12.9 + a = 29.4

Solving for variable 'a'.

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

Add '12.9' to each side of the equation.
-12.9 + 12.9 + a = 29.4 + 12.9

Combine like terms: -12.9 + 12.9 = 0.0
0.0 + a = 29.4 + 12.9
a = 29.4 + 12.9

Combine like terms: 29.4 + 12.9 = 42.3
a = 42.3

Simplifying
a = 42.3

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