x+3x+16=128

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Solution for x+3x+16=128 equation:


Simplifying
x + 3x + 16 = 128

Reorder the terms:
16 + x + 3x = 128

Combine like terms: x + 3x = 4x
16 + 4x = 128

Solving
16 + 4x = 128

Solving for variable 'x'.

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

Add '-16' to each side of the equation.
16 + -16 + 4x = 128 + -16

Combine like terms: 16 + -16 = 0
0 + 4x = 128 + -16
4x = 128 + -16

Combine like terms: 128 + -16 = 112
4x = 112

Divide each side by '4'.
x = 28

Simplifying
x = 28

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