9n-21+6n=6

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Solution for 9n-21+6n=6 equation:


Simplifying
9n + -21 + 6n = 6

Reorder the terms:
-21 + 9n + 6n = 6

Combine like terms: 9n + 6n = 15n
-21 + 15n = 6

Solving
-21 + 15n = 6

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 + 15n = 6 + 21

Combine like terms: -21 + 21 = 0
0 + 15n = 6 + 21
15n = 6 + 21

Combine like terms: 6 + 21 = 27
15n = 27

Divide each side by '15'.
n = 1.8

Simplifying
n = 1.8

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