4x-81-8x=

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Solution for 4x-81-8x= equation:


Simplifying
4x + -81 + -8x = 0

Reorder the terms:
-81 + 4x + -8x = 0

Combine like terms: 4x + -8x = -4x
-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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