3x+15=12-6x

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Solution for 3x+15=12-6x equation:


Simplifying
3x + 15 = 12 + -6x

Reorder the terms:
15 + 3x = 12 + -6x

Solving
15 + 3x = 12 + -6x

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
15 + 3x + 6x = 12 + -6x + 6x

Combine like terms: 3x + 6x = 9x
15 + 9x = 12 + -6x + 6x

Combine like terms: -6x + 6x = 0
15 + 9x = 12 + 0
15 + 9x = 12

Add '-15' to each side of the equation.
15 + -15 + 9x = 12 + -15

Combine like terms: 15 + -15 = 0
0 + 9x = 12 + -15
9x = 12 + -15

Combine like terms: 12 + -15 = -3
9x = -3

Divide each side by '9'.
x = -0.3333333333

Simplifying
x = -0.3333333333

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