128-3x=4x+23

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Solution for 128-3x=4x+23 equation:


Simplifying
128 + -3x = 4x + 23

Reorder the terms:
128 + -3x = 23 + 4x

Solving
128 + -3x = 23 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
128 + -3x + -4x = 23 + 4x + -4x

Combine like terms: -3x + -4x = -7x
128 + -7x = 23 + 4x + -4x

Combine like terms: 4x + -4x = 0
128 + -7x = 23 + 0
128 + -7x = 23

Add '-128' to each side of the equation.
128 + -128 + -7x = 23 + -128

Combine like terms: 128 + -128 = 0
0 + -7x = 23 + -128
-7x = 23 + -128

Combine like terms: 23 + -128 = -105
-7x = -105

Divide each side by '-7'.
x = 15

Simplifying
x = 15

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