120-4x=20

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Solution for 120-4x=20 equation: 


Simplifying
120 + -4x = 20

Solving
120 + -4x = 20

Solving for variable 'x'.

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

Add '-120' to each side of the equation.
120 + -120 + -4x = 20 + -120

Combine like terms: 120 + -120 = 0
0 + -4x = 20 + -120
-4x = 20 + -120

Combine like terms: 20 + -120 = -100
-4x = -100

Divide each side by '-4'.
x = 25

Simplifying
x = 25

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