3n-4+9n=2

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Solution for 3n-4+9n=2 equation: 


Simplifying
3n + -4 + 9n = 2

Reorder the terms:
-4 + 3n + 9n = 2

Combine like terms: 3n + 9n = 12n
-4 + 12n = 2

Solving
-4 + 12n = 2

Solving for variable 'n'.

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

Add '4' to each side of the equation.
-4 + 4 + 12n = 2 + 4

Combine like terms: -4 + 4 = 0
0 + 12n = 2 + 4
12n = 2 + 4

Combine like terms: 2 + 4 = 6
12n = 6

Divide each side by '12'.
n = 0.5

Simplifying
n = 0.5

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