=a-0.4a

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Solution for =a-0.4a equation: 


Simplifying
0 = a + -0.4a

Combine like terms: a + -0.4a = 0.6a
0 = 0.6a

Solving
0 = 0.6a

Solving for variable 'a'.

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

Add '-0.6a' to each side of the equation.
0 + -0.6a = 0.6a + -0.6a
Remove the zero:
-0.6a = 0.6a + -0.6a

Combine like terms: 0.6a + -0.6a = 0.0
-0.6a = 0.0

Divide each side by '-0.6'.
a = 0

Simplifying
a = 0

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