12x+3=x-9

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


Simplifying
12x + 3 = x + -9

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

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

Solving
3 + 12x = -9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
3 + 12x + -1x = -9 + x + -1x

Combine like terms: 12x + -1x = 11x
3 + 11x = -9 + x + -1x

Combine like terms: x + -1x = 0
3 + 11x = -9 + 0
3 + 11x = -9

Add '-3' to each side of the equation.
3 + -3 + 11x = -9 + -3

Combine like terms: 3 + -3 = 0
0 + 11x = -9 + -3
11x = -9 + -3

Combine like terms: -9 + -3 = -12
11x = -12

Divide each side by '11'.
x = -1.090909091

Simplifying
x = -1.090909091

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