12+3n=5n-18

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Solution for 12+3n=5n-18 equation:


Simplifying
12 + 3n = 5n + -18

Reorder the terms:
12 + 3n = -18 + 5n

Solving
12 + 3n = -18 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
12 + 3n + -5n = -18 + 5n + -5n

Combine like terms: 3n + -5n = -2n
12 + -2n = -18 + 5n + -5n

Combine like terms: 5n + -5n = 0
12 + -2n = -18 + 0
12 + -2n = -18

Add '-12' to each side of the equation.
12 + -12 + -2n = -18 + -12

Combine like terms: 12 + -12 = 0
0 + -2n = -18 + -12
-2n = -18 + -12

Combine like terms: -18 + -12 = -30
-2n = -30

Divide each side by '-2'.
n = 15

Simplifying
n = 15

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