x=21x-84

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Solution for x=21x-84 equation: 


Simplifying
x = 21x + -84

Reorder the terms:
x = -84 + 21x

Solving
x = -84 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
x + -21x = -84 + 21x + -21x

Combine like terms: x + -21x = -20x
-20x = -84 + 21x + -21x

Combine like terms: 21x + -21x = 0
-20x = -84 + 0
-20x = -84

Divide each side by '-20'.
x = 4.2

Simplifying
x = 4.2

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