7x-21x=0

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Solution for 7x-21x=0 equation: 


Simplifying
7x + -21x = 0

Combine like terms: 7x + -21x = -14x
-14x = 0

Solving
-14x = 0

Solving for variable 'x'.

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

Divide each side by '-14'.
x = 0

Simplifying
x = 0

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