9n-15=2n+6

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Solution for 9n-15=2n+6 equation:


Simplifying
9n + -15 = 2n + 6

Reorder the terms:
-15 + 9n = 2n + 6

Reorder the terms:
-15 + 9n = 6 + 2n

Solving
-15 + 9n = 6 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
-15 + 9n + -2n = 6 + 2n + -2n

Combine like terms: 9n + -2n = 7n
-15 + 7n = 6 + 2n + -2n

Combine like terms: 2n + -2n = 0
-15 + 7n = 6 + 0
-15 + 7n = 6

Add '15' to each side of the equation.
-15 + 15 + 7n = 6 + 15

Combine like terms: -15 + 15 = 0
0 + 7n = 6 + 15
7n = 6 + 15

Combine like terms: 6 + 15 = 21
7n = 21

Divide each side by '7'.
n = 3

Simplifying
n = 3

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