9n+12n-45=0

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Solution for 9n+12n-45=0 equation:


Simplifying
9n + 12n + -45 = 0

Reorder the terms:
-45 + 9n + 12n = 0

Combine like terms: 9n + 12n = 21n
-45 + 21n = 0

Solving
-45 + 21n = 0

Solving for variable 'n'.

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

Add '45' to each side of the equation.
-45 + 45 + 21n = 0 + 45

Combine like terms: -45 + 45 = 0
0 + 21n = 0 + 45
21n = 0 + 45

Combine like terms: 0 + 45 = 45
21n = 45

Divide each side by '21'.
n = 2.142857143

Simplifying
n = 2.142857143

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