27=-3x-9x

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Solution for 27=-3x-9x equation:


Simplifying
27 = -3x + -9x

Combine like terms: -3x + -9x = -12x
27 = -12x

Solving
27 = -12x

Solving for variable 'x'.

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

Add '12x' to each side of the equation.
27 + 12x = -12x + 12x

Combine like terms: -12x + 12x = 0
27 + 12x = 0

Add '-27' to each side of the equation.
27 + -27 + 12x = 0 + -27

Combine like terms: 27 + -27 = 0
0 + 12x = 0 + -27
12x = 0 + -27

Combine like terms: 0 + -27 = -27
12x = -27

Divide each side by '12'.
x = -2.25

Simplifying
x = -2.25

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