3a+0.9a=

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Solution for 3a+0.9a= equation: 


Simplifying
3a + 0.9a = 0

Combine like terms: 3a + 0.9a = 3.9a
3.9a = 0

Solving
3.9a = 0

Solving for variable 'a'.

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

Divide each side by '3.9'.
a = 0

Simplifying
a = 0

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