3n+9=9n-6

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


Simplifying
3n + 9 = 9n + -6

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

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

Solving
9 + 3n = -6 + 9n

Solving for variable 'n'.

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

Add '-9n' to each side of the equation.
9 + 3n + -9n = -6 + 9n + -9n

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

Combine like terms: 9n + -9n = 0
9 + -6n = -6 + 0
9 + -6n = -6

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

Combine like terms: 9 + -9 = 0
0 + -6n = -6 + -9
-6n = -6 + -9

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

Divide each side by '-6'.
n = 2.5

Simplifying
n = 2.5

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