9n=21+21n

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Solution for 9n=21+21n equation: 


Simplifying
9n = 21 + 21n

Solving
9n = 21 + 21n

Solving for variable 'n'.

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

Add '-21n' to each side of the equation.
9n + -21n = 21 + 21n + -21n

Combine like terms: 9n + -21n = -12n
-12n = 21 + 21n + -21n

Combine like terms: 21n + -21n = 0
-12n = 21 + 0
-12n = 21

Divide each side by '-12'.
n = -1.75

Simplifying
n = -1.75

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