-2b=20.5

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Solution for -2b=20.5 equation: 


Simplifying
-2b = 20.5

Solving
-2b = 20.5

Solving for variable 'b'.

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

Divide each side by '-2'.
b = -10.25

Simplifying
b = -10.25

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