81-4b=0

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Solution for 81-4b=0 equation: 


Simplifying
81 + -4b = 0

Solving
81 + -4b = 0

Solving for variable 'b'.

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

Add '-81' to each side of the equation.
81 + -81 + -4b = 0 + -81

Combine like terms: 81 + -81 = 0
0 + -4b = 0 + -81
-4b = 0 + -81

Combine like terms: 0 + -81 = -81
-4b = -81

Divide each side by '-4'.
b = 20.25

Simplifying
b = 20.25

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