12(x-1)=3(2x+1)+9

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Solution for 12(x-1)=3(2x+1)+9 equation:


Simplifying
12(x + -1) = 3(2x + 1) + 9

Reorder the terms:
12(-1 + x) = 3(2x + 1) + 9
(-1 * 12 + x * 12) = 3(2x + 1) + 9
(-12 + 12x) = 3(2x + 1) + 9

Reorder the terms:
-12 + 12x = 3(1 + 2x) + 9
-12 + 12x = (1 * 3 + 2x * 3) + 9
-12 + 12x = (3 + 6x) + 9

Reorder the terms:
-12 + 12x = 3 + 9 + 6x

Combine like terms: 3 + 9 = 12
-12 + 12x = 12 + 6x

Solving
-12 + 12x = 12 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-12 + 12x + -6x = 12 + 6x + -6x

Combine like terms: 12x + -6x = 6x
-12 + 6x = 12 + 6x + -6x

Combine like terms: 6x + -6x = 0
-12 + 6x = 12 + 0
-12 + 6x = 12

Add '12' to each side of the equation.
-12 + 12 + 6x = 12 + 12

Combine like terms: -12 + 12 = 0
0 + 6x = 12 + 12
6x = 12 + 12

Combine like terms: 12 + 12 = 24
6x = 24

Divide each side by '6'.
x = 4

Simplifying
x = 4

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