81=-9x

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Solution for 81=-9x equation:


Simplifying
81 = -9x

Solving
81 = -9x

Solving for variable 'x'.

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

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

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

Add '-81' to each side of the equation.
81 + -81 + 9x = 0 + -81

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

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

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

Simplifying
x = -9

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