3x+9x+2x=x-2x-3

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Solution for 3x+9x+2x=x-2x-3 equation:


Simplifying
3x + 9x + 2x = x + -2x + -3

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

Combine like terms: 12x + 2x = 14x
14x = x + -2x + -3

Reorder the terms:
14x = -3 + x + -2x

Combine like terms: x + -2x = -1x
14x = -3 + -1x

Solving
14x = -3 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
14x + x = -3 + -1x + x

Combine like terms: 14x + x = 15x
15x = -3 + -1x + x

Combine like terms: -1x + x = 0
15x = -3 + 0
15x = -3

Divide each side by '15'.
x = -0.2

Simplifying
x = -0.2

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