Use factoring to rewrite each expression in an equivalent form. Use few terms as possible.

3x-12+6x+9

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Simplifying

3x + -12 + 6x + 9 = 0

Reorder the terms:

-12 + 9 + 3x + 6x = 0

Combine like terms: -12 + 9 = -3

-3 + 3x + 6x = 0

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

-3 + 9x = 0

Solving

-3 + 9x = 0

Solving for variable 'x'.

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

Add '3' to each side of the equation.

-3 + 3 + 9x = 0 + 3

Combine like terms: -3 + 3 = 0

0 + 9x = 0 + 3

9x = 0 + 3

Combine like terms: 0 + 3 = 3

9x = 3

Divide each side by '9'.

x = 0.3333333333

Simplifying

x = 0.3333333333

i hope this helps because this best i could find sorry if its not what your looking for

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step-by-step explanation: