10+3n-13=21

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Solution for 10+3n-13=21 equation: 


Simplifying
10 + 3n + -13 = 21

Reorder the terms:
10 + -13 + 3n = 21

Combine like terms: 10 + -13 = -3
-3 + 3n = 21

Solving
-3 + 3n = 21

Solving for variable 'n'.

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

Add '3' to each side of the equation.
-3 + 3 + 3n = 21 + 3

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

Combine like terms: 21 + 3 = 24
3n = 24

Divide each side by '3'.
n = 8

Simplifying
n = 8

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