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

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


Simplifying
(-3x + -9) + -1(6x + 6) = 0

Reorder the terms:
(-9 + -3x) + -1(6x + 6) = 0

Remove parenthesis around (-9 + -3x)
-9 + -3x + -1(6x + 6) = 0

Reorder the terms:
-9 + -3x + -1(6 + 6x) = 0
-9 + -3x + (6 * -1 + 6x * -1) = 0
-9 + -3x + (-6 + -6x) = 0

Reorder the terms:
-9 + -6 + -3x + -6x = 0

Combine like terms: -9 + -6 = -15
-15 + -3x + -6x = 0

Combine like terms: -3x + -6x = -9x
-15 + -9x = 0

Solving
-15 + -9x = 0

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + -9x = 0 + 15

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

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

Divide each side by '-9'.
x = -1.666666667

Simplifying
x = -1.666666667

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