3(12-4x)=81

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Solution for 3(12-4x)=81 equation: 


Simplifying
3(12 + -4x) = 81
(12 * 3 + -4x * 3) = 81
(36 + -12x) = 81

Solving
36 + -12x = 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 + -12x = 81 + -36

Combine like terms: 36 + -36 = 0
0 + -12x = 81 + -36
-12x = 81 + -36

Combine like terms: 81 + -36 = 45
-12x = 45

Divide each side by '-12'.
x = -3.75

Simplifying
x = -3.75

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