3X-40=0

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Solution for 3X-40=0 equation: 


Simplifying
3X + -40 = 0

Reorder the terms:
-40 + 3X = 0

Solving
-40 + 3X = 0

Solving for variable 'X'.

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

Add '40' to each side of the equation.
-40 + 40 + 3X = 0 + 40

Combine like terms: -40 + 40 = 0
0 + 3X = 0 + 40
3X = 0 + 40

Combine like terms: 0 + 40 = 40
3X = 40

Divide each side by '3'.
X = 13.33333333

Simplifying
X = 13.33333333

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