5x+81=9-4x

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Solution for 5x+81=9-4x equation:


Simplifying
5x + 81 = 9 + -4x

Reorder the terms:
81 + 5x = 9 + -4x

Solving
81 + 5x = 9 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
81 + 5x + 4x = 9 + -4x + 4x

Combine like terms: 5x + 4x = 9x
81 + 9x = 9 + -4x + 4x

Combine like terms: -4x + 4x = 0
81 + 9x = 9 + 0
81 + 9x = 9

Add '-81' to each side of the equation.
81 + -81 + 9x = 9 + -81

Combine like terms: 81 + -81 = 0
0 + 9x = 9 + -81
9x = 9 + -81

Combine like terms: 9 + -81 = -72
9x = -72

Divide each side by '9'.
x = -8

Simplifying
x = -8

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