-9(x-4)=-81

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Solution for -9(x-4)=-81 equation:


Simplifying
-9(x + -4) = -81

Reorder the terms:
-9(-4 + x) = -81
(-4 * -9 + x * -9) = -81
(36 + -9x) = -81

Solving
36 + -9x = -81

Solving for variable 'x'.

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

Add '-36' to each side of the equation.
36 + -36 + -9x = -81 + -36

Combine like terms: 36 + -36 = 0
0 + -9x = -81 + -36
-9x = -81 + -36

Combine like terms: -81 + -36 = -117
-9x = -117

Divide each side by '-9'.
x = 13

Simplifying
x = 13

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