-4(-3+7X)=-128

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Solution for -4(-3+7X)=-128 equation: 


Simplifying
-4(-3 + 7X) = -128
(-3 * -4 + 7X * -4) = -128
(12 + -28X) = -128

Solving
12 + -28X = -128

Solving for variable 'X'.

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

Add '-12' to each side of the equation.
12 + -12 + -28X = -128 + -12

Combine like terms: 12 + -12 = 0
0 + -28X = -128 + -12
-28X = -128 + -12

Combine like terms: -128 + -12 = -140
-28X = -140

Divide each side by '-28'.
X = 5

Simplifying
X = 5

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