12x-9-3x=-3(x-9)

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


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

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

Combine like terms: 12x + -3x = 9x
-9 + 9x = -3(x + -9)

Reorder the terms:
-9 + 9x = -3(-9 + x)
-9 + 9x = (-9 * -3 + x * -3)
-9 + 9x = (27 + -3x)

Solving
-9 + 9x = 27 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-9 + 9x + 3x = 27 + -3x + 3x

Combine like terms: 9x + 3x = 12x
-9 + 12x = 27 + -3x + 3x

Combine like terms: -3x + 3x = 0
-9 + 12x = 27 + 0
-9 + 12x = 27

Add '9' to each side of the equation.
-9 + 9 + 12x = 27 + 9

Combine like terms: -9 + 9 = 0
0 + 12x = 27 + 9
12x = 27 + 9

Combine like terms: 27 + 9 = 36
12x = 36

Divide each side by '12'.
x = 3

Simplifying
x = 3

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