102n-40=21n

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Solution for 102n-40=21n equation:


Simplifying
102n + -40 = 21n

Reorder the terms:
-40 + 102n = 21n

Solving
-40 + 102n = 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.
-40 + 102n + -21n = 21n + -21n

Combine like terms: 102n + -21n = 81n
-40 + 81n = 21n + -21n

Combine like terms: 21n + -21n = 0
-40 + 81n = 0

Add '40' to each side of the equation.
-40 + 40 + 81n = 0 + 40

Combine like terms: -40 + 40 = 0
0 + 81n = 0 + 40
81n = 0 + 40

Combine like terms: 0 + 40 = 40
81n = 40

Divide each side by '81'.
n = 0.4938271605

Simplifying
n = 0.4938271605

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