3n+21=36

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Solution for 3n+21=36 equation: 


Simplifying
3n + 21 = 36

Reorder the terms:
21 + 3n = 36

Solving
21 + 3n = 36

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 + 3n = 36 + -21

Combine like terms: 21 + -21 = 0
0 + 3n = 36 + -21
3n = 36 + -21

Combine like terms: 36 + -21 = 15
3n = 15

Divide each side by '3'.
n = 5

Simplifying
n = 5

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