3x+6=12-9

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Solution for 3x+6=12-9 equation: 


Simplifying
3x + 6 = 12 + -9

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

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

Solving
6 + 3x = 3

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 3x = 3 + -6

Combine like terms: 6 + -6 = 0
0 + 3x = 3 + -6
3x = 3 + -6

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

Divide each side by '3'.
x = -1

Simplifying
x = -1

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