0.8-b=-0.4

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Solution for 0.8-b=-0.4 equation: 


Simplifying
0.8 + -1b = -0.4

Solving
0.8 + -1b = -0.4

Solving for variable 'b'.

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

Add '-0.8' to each side of the equation.
0.8 + -0.8 + -1b = -0.4 + -0.8

Combine like terms: 0.8 + -0.8 = 0.0
0.0 + -1b = -0.4 + -0.8
-1b = -0.4 + -0.8

Combine like terms: -0.4 + -0.8 = -1.2
-1b = -1.2

Divide each side by '-1'.
b = 1.2

Simplifying
b = 1.2

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