2n+21=51

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Solution for 2n+21=51 equation: 


Simplifying
2n + 21 = 51

Reorder the terms:
21 + 2n = 51

Solving
21 + 2n = 51

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + 2n = 51 + -21

Combine like terms: 21 + -21 = 0
0 + 2n = 51 + -21
2n = 51 + -21

Combine like terms: 51 + -21 = 30
2n = 30

Divide each side by '2'.
n = 15

Simplifying
n = 15

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