3n+9-6=90

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Solution for 3n+9-6=90 equation: 


Simplifying
3n + 9 + -6 = 90

Reorder the terms:
9 + -6 + 3n = 90

Combine like terms: 9 + -6 = 3
3 + 3n = 90

Solving
3 + 3n = 90

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 = 90 + -3

Combine like terms: 3 + -3 = 0
0 + 3n = 90 + -3
3n = 90 + -3

Combine like terms: 90 + -3 = 87
3n = 87

Divide each side by '3'.
n = 29

Simplifying
n = 29

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