9=12x-4x*2

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Solution for 9=12x-4x*2 equation:


Simplifying
9 = 12x + -4x * 2

Reorder the terms for easier multiplication:
9 = 12x + -4 * 2x

Multiply -4 * 2
9 = 12x + -8x

Combine like terms: 12x + -8x = 4x
9 = 4x

Solving
9 = 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
9 + -4x = 4x + -4x

Combine like terms: 4x + -4x = 0
9 + -4x = 0

Add '-9' to each side of the equation.
9 + -9 + -4x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -4x = 0 + -9
-4x = 0 + -9

Combine like terms: 0 + -9 = -9
-4x = -9

Divide each side by '-4'.
x = 2.25

Simplifying
x = 2.25

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