4x-81=0

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Solution for 4x-81=0 equation: 


Simplifying
4x + -81 = 0

Reorder the terms:
-81 + 4x = 0

Solving
-81 + 4x = 0

Solving for variable 'x'.

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

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

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

Combine like terms: 0 + 81 = 81
4x = 81

Divide each side by '4'.
x = 20.25

Simplifying
x = 20.25

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