81=6x-18

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Solution for 81=6x-18 equation:


Simplifying
81 = 6x + -18

Reorder the terms:
81 = -18 + 6x

Solving
81 = -18 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
81 + -6x = -18 + 6x + -6x

Combine like terms: 6x + -6x = 0
81 + -6x = -18 + 0
81 + -6x = -18

Add '-81' to each side of the equation.
81 + -81 + -6x = -18 + -81

Combine like terms: 81 + -81 = 0
0 + -6x = -18 + -81
-6x = -18 + -81

Combine like terms: -18 + -81 = -99
-6x = -99

Divide each side by '-6'.
x = 16.5

Simplifying
x = 16.5

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