4x-81=100

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Solution for 4x-81=100 equation: 


Simplifying
4x + -81 = 100

Reorder the terms:
-81 + 4x = 100

Solving
-81 + 4x = 100

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 = 100 + 81

Combine like terms: -81 + 81 = 0
0 + 4x = 100 + 81
4x = 100 + 81

Combine like terms: 100 + 81 = 181
4x = 181

Divide each side by '4'.
x = 45.25

Simplifying
x = 45.25

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