4(-9+3x)=144

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Solution for 4(-9+3x)=144 equation: 


Simplifying
4(-9 + 3x) = 144
(-9 * 4 + 3x * 4) = 144
(-36 + 12x) = 144

Solving
-36 + 12x = 144

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 = 144 + 36

Combine like terms: -36 + 36 = 0
0 + 12x = 144 + 36
12x = 144 + 36

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

Divide each side by '12'.
x = 15

Simplifying
x = 15

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