3n-21=48

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Solution for 3n-21=48 equation: 


Simplifying
3n + -21 = 48

Reorder the terms:
-21 + 3n = 48

Solving
-21 + 3n = 48

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 = 48 + 21

Combine like terms: -21 + 21 = 0
0 + 3n = 48 + 21
3n = 48 + 21

Combine like terms: 48 + 21 = 69
3n = 69

Divide each side by '3'.
n = 23

Simplifying
n = 23

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