12=3x+6x+3

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


Simplifying
12 = 3x + 6x + 3

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

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

Solving
12 = 3 + 9x

Solving for variable 'x'.

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

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

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

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

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

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

Divide each side by '-9'.
x = 1

Simplifying
x = 1

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