3(x-1)=81

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Solution for 3(x-1)=81 equation: 


Simplifying
3(x + -1) = 81

Reorder the terms:
3(-1 + x) = 81
(-1 * 3 + x * 3) = 81
(-3 + 3x) = 81

Solving
-3 + 3x = 81

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 3x = 81 + 3

Combine like terms: -3 + 3 = 0
0 + 3x = 81 + 3
3x = 81 + 3

Combine like terms: 81 + 3 = 84
3x = 84

Divide each side by '3'.
x = 28

Simplifying
x = 28

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