5x=12x-21

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Solution for 5x=12x-21 equation: 


Simplifying
5x = 12x + -21

Reorder the terms:
5x = -21 + 12x

Solving
5x = -21 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
5x + -12x = -21 + 12x + -12x

Combine like terms: 5x + -12x = -7x
-7x = -21 + 12x + -12x

Combine like terms: 12x + -12x = 0
-7x = -21 + 0
-7x = -21

Divide each side by '-7'.
x = 3

Simplifying
x = 3

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