12(x-1)=9

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Solution for 12(x-1)=9 equation: 


Simplifying
12(x + -1) = 9

Reorder the terms:
12(-1 + x) = 9
(-1 * 12 + x * 12) = 9
(-12 + 12x) = 9

Solving
-12 + 12x = 9

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 12x = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 12x = 9 + 12
12x = 9 + 12

Combine like terms: 9 + 12 = 21
12x = 21

Divide each side by '12'.
x = 1.75

Simplifying
x = 1.75

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