2x+(4x-12)=3x+9

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Solution for 2x+(4x-12)=3x+9 equation:


Simplifying
2x + (4x + -12) = 3x + 9

Reorder the terms:
2x + (-12 + 4x) = 3x + 9

Remove parenthesis around (-12 + 4x)
2x + -12 + 4x = 3x + 9

Reorder the terms:
-12 + 2x + 4x = 3x + 9

Combine like terms: 2x + 4x = 6x
-12 + 6x = 3x + 9

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

Solving
-12 + 6x = 9 + 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.
-12 + 6x + -3x = 9 + 3x + -3x

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

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

Add '12' to each side of the equation.
-12 + 12 + 3x = 9 + 12

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

Combine like terms: 9 + 12 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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