4(-3x-9)=-180

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Solution for 4(-3x-9)=-180 equation: 


Simplifying
4(-3x + -9) = -180

Reorder the terms:
4(-9 + -3x) = -180
(-9 * 4 + -3x * 4) = -180
(-36 + -12x) = -180

Solving
-36 + -12x = -180

Solving for variable 'x'.

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

Add '36' to each side of the equation.
-36 + 36 + -12x = -180 + 36

Combine like terms: -36 + 36 = 0
0 + -12x = -180 + 36
-12x = -180 + 36

Combine like terms: -180 + 36 = -144
-12x = -144

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

Simplifying
x = 12

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