0.2b-0.4=2

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Solution for 0.2b-0.4=2 equation: 


Simplifying
0.2b + -0.4 = 2

Reorder the terms:
-0.4 + 0.2b = 2

Solving
-0.4 + 0.2b = 2

Solving for variable 'b'.

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

Add '0.4' to each side of the equation.
-0.4 + 0.4 + 0.2b = 2 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 0.2b = 2 + 0.4
0.2b = 2 + 0.4

Combine like terms: 2 + 0.4 = 2.4
0.2b = 2.4

Divide each side by '0.2'.
b = 12

Simplifying
b = 12

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