128-5x=3x+8

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Solution for 128-5x=3x+8 equation:


Simplifying
128 + -5x = 3x + 8

Reorder the terms:
128 + -5x = 8 + 3x

Solving
128 + -5x = 8 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
128 + -5x + -3x = 8 + 3x + -3x

Combine like terms: -5x + -3x = -8x
128 + -8x = 8 + 3x + -3x

Combine like terms: 3x + -3x = 0
128 + -8x = 8 + 0
128 + -8x = 8

Add '-128' to each side of the equation.
128 + -128 + -8x = 8 + -128

Combine like terms: 128 + -128 = 0
0 + -8x = 8 + -128
-8x = 8 + -128

Combine like terms: 8 + -128 = -120
-8x = -120

Divide each side by '-8'.
x = 15

Simplifying
x = 15

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