4(x+3x)=128

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Solution for 4(x+3x)=128 equation: 


Simplifying
4(x + 3x) = 128

Combine like terms: x + 3x = 4x
4(4x) = 128

Remove parenthesis around (4x)
4 * 4x = 128

Multiply 4 * 4
16x = 128

Solving
16x = 128

Solving for variable 'x'.

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

Divide each side by '16'.
x = 8

Simplifying
x = 8

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