3n+9n-6=2n+9

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Solution for 3n+9n-6=2n+9 equation:


Simplifying
3n + 9n + -6 = 2n + 9

Reorder the terms:
-6 + 3n + 9n = 2n + 9

Combine like terms: 3n + 9n = 12n
-6 + 12n = 2n + 9

Reorder the terms:
-6 + 12n = 9 + 2n

Solving
-6 + 12n = 9 + 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.
-6 + 12n + -2n = 9 + 2n + -2n

Combine like terms: 12n + -2n = 10n
-6 + 10n = 9 + 2n + -2n

Combine like terms: 2n + -2n = 0
-6 + 10n = 9 + 0
-6 + 10n = 9

Add '6' to each side of the equation.
-6 + 6 + 10n = 9 + 6

Combine like terms: -6 + 6 = 0
0 + 10n = 9 + 6
10n = 9 + 6

Combine like terms: 9 + 6 = 15
10n = 15

Divide each side by '10'.
n = 1.5

Simplifying
n = 1.5

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