9n-3=2n+18

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Solution for 9n-3=2n+18 equation:


Simplifying
9n + -3 = 2n + 18

Reorder the terms:
-3 + 9n = 2n + 18

Reorder the terms:
-3 + 9n = 18 + 2n

Solving
-3 + 9n = 18 + 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.
-3 + 9n + -2n = 18 + 2n + -2n

Combine like terms: 9n + -2n = 7n
-3 + 7n = 18 + 2n + -2n

Combine like terms: 2n + -2n = 0
-3 + 7n = 18 + 0
-3 + 7n = 18

Add '3' to each side of the equation.
-3 + 3 + 7n = 18 + 3

Combine like terms: -3 + 3 = 0
0 + 7n = 18 + 3
7n = 18 + 3

Combine like terms: 18 + 3 = 21
7n = 21

Divide each side by '7'.
n = 3

Simplifying
n = 3

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