2b-8=0.4

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Solution for 2b-8=0.4 equation: 


Simplifying
2b + -8 = 0.4

Reorder the terms:
-8 + 2b = 0.4

Solving
-8 + 2b = 0.4

Solving for variable 'b'.

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

Add '8' to each side of the equation.
-8 + 8 + 2b = 0.4 + 8

Combine like terms: -8 + 8 = 0
0 + 2b = 0.4 + 8
2b = 0.4 + 8

Combine like terms: 0.4 + 8 = 8.4
2b = 8.4

Divide each side by '2'.
b = 4.2

Simplifying
b = 4.2

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