3X-420=0

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Solution for 3X-420=0 equation: 


Simplifying
3X + -420 = 0

Reorder the terms:
-420 + 3X = 0

Solving
-420 + 3X = 0

Solving for variable 'X'.

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

Add '420' to each side of the equation.
-420 + 420 + 3X = 0 + 420

Combine like terms: -420 + 420 = 0
0 + 3X = 0 + 420
3X = 0 + 420

Combine like terms: 0 + 420 = 420
3X = 420

Divide each side by '3'.
X = 140

Simplifying
X = 140

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