-9x-3x=6(x+9)-12(x+9)

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Solution for -9x-3x=6(x+9)-12(x+9) equation:


Simplifying
-9x + -3x = 6(x + 9) + -12(x + 9)

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

Reorder the terms:
-12x = 6(9 + x) + -12(x + 9)
-12x = (9 * 6 + x * 6) + -12(x + 9)
-12x = (54 + 6x) + -12(x + 9)

Reorder the terms:
-12x = 54 + 6x + -12(9 + x)
-12x = 54 + 6x + (9 * -12 + x * -12)
-12x = 54 + 6x + (-108 + -12x)

Reorder the terms:
-12x = 54 + -108 + 6x + -12x

Combine like terms: 54 + -108 = -54
-12x = -54 + 6x + -12x

Combine like terms: 6x + -12x = -6x
-12x = -54 + -6x

Solving
-12x = -54 + -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.
-12x + 6x = -54 + -6x + 6x

Combine like terms: -12x + 6x = -6x
-6x = -54 + -6x + 6x

Combine like terms: -6x + 6x = 0
-6x = -54 + 0
-6x = -54

Divide each side by '-6'.
x = 9

Simplifying
x = 9

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