2n+I=21

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Solution for 2n+I=21 equation: 


Simplifying
2n + I = 21

Reorder the terms:
I + 2n = 21

Solving
I + 2n = 21

Solving for variable 'I'.

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

Add '-2n' to each side of the equation.
I + 2n + -2n = 21 + -2n

Combine like terms: 2n + -2n = 0
I + 0 = 21 + -2n
I = 21 + -2n

Simplifying
I = 21 + -2n

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