0.4+4a=1.2

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Solution for 0.4+4a=1.2 equation: 


Simplifying
0.4 + 4a = 1.2

Solving
0.4 + 4a = 1.2

Solving for variable 'a'.

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

Add '-0.4' to each side of the equation.
0.4 + -0.4 + 4a = 1.2 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + 4a = 1.2 + -0.4
4a = 1.2 + -0.4

Combine like terms: 1.2 + -0.4 = 0.8
4a = 0.8

Divide each side by '4'.
a = 0.2

Simplifying
a = 0.2

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