9+7*n=30

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Solution for 9+7*n=30 equation: 


Simplifying
9 + 7n = 30

Solving
9 + 7n = 30

Solving for variable 'n'.

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

Add '-9' to each side of the equation.
9 + -9 + 7n = 30 + -9

Combine like terms: 9 + -9 = 0
0 + 7n = 30 + -9
7n = 30 + -9

Combine like terms: 30 + -9 = 21
7n = 21

Divide each side by '7'.
n = 3

Simplifying
n = 3

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