18n-42=15n-18

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Solution for 18n-42=15n-18 equation:


Simplifying
18n + -42 = 15n + -18

Reorder the terms:
-42 + 18n = 15n + -18

Reorder the terms:
-42 + 18n = -18 + 15n

Solving
-42 + 18n = -18 + 15n

Solving for variable 'n'.

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

Add '-15n' to each side of the equation.
-42 + 18n + -15n = -18 + 15n + -15n

Combine like terms: 18n + -15n = 3n
-42 + 3n = -18 + 15n + -15n

Combine like terms: 15n + -15n = 0
-42 + 3n = -18 + 0
-42 + 3n = -18

Add '42' to each side of the equation.
-42 + 42 + 3n = -18 + 42

Combine like terms: -42 + 42 = 0
0 + 3n = -18 + 42
3n = -18 + 42

Combine like terms: -18 + 42 = 24
3n = 24

Divide each side by '3'.
n = 8

Simplifying
n = 8

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