2(3x+6)+9=9+2x

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Solution for 2(3x+6)+9=9+2x equation:


Simplifying
2(3x + 6) + 9 = 9 + 2x

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

Reorder the terms:
12 + 9 + 6x = 9 + 2x

Combine like terms: 12 + 9 = 21
21 + 6x = 9 + 2x

Solving
21 + 6x = 9 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
21 + 6x + -2x = 9 + 2x + -2x

Combine like terms: 6x + -2x = 4x
21 + 4x = 9 + 2x + -2x

Combine like terms: 2x + -2x = 0
21 + 4x = 9 + 0
21 + 4x = 9

Add '-21' to each side of the equation.
21 + -21 + 4x = 9 + -21

Combine like terms: 21 + -21 = 0
0 + 4x = 9 + -21
4x = 9 + -21

Combine like terms: 9 + -21 = -12
4x = -12

Divide each side by '4'.
x = -3

Simplifying
x = -3

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